Electricity MCQs

Electricity MCQs with Answers

In the Army, Navy, and Pakistan Air Force initial academic exams, electricity MCQs with answers are essential. These thoughtfully constructed electricity multiple-choice questions address the crucial subject of physics, which is a necessary component of the physics examinations administered in several defense force branches. It takes a deep understanding of electricity to be in the Navy Supply Branch, PN Cadets, or Navy Operation Branch.

Interested students can improve their knowledge and successfully prepare for their exams by practicing these multiple-choice questions. The purpose of these questions is to evaluate the candidates’ comprehension of electrical concepts and make sure they are ready for the challenges that lie ahead.

Electricity MCQs(Part-1)

  • In an electrical circuit, the potential difference is measured by ________. (volts)
  • According to Ohm’s Law, the current through a current is directly proportional to ________. (voltage or potential difference)
  • The SI unit of electric current is ________. (amperes)
  • In a series circuit, the total resistance is equal to the ________ of the individual resistors. (sum or amount)
  • ________ is a measure of how difficult it is for current to pass through a component. (resistance)
  • In a parallel circuit, the total resistance is calculated using the reciprocal of the ________ of the individual resistances. (inversely proportional or inverse)
  • The ____ law states that the total current entering an intersection equals the total current exiting an intersection. (Kirchhoff current or junction)
  • A device used to control current in a circuit is called a ________. (switch)
  • The rate at which electrical energy is converted into other forms of energy is measured by ________. (power)
  • The unit of power is ________. (watts)
  • When resistors are connected in parallel, the total resistance is ________than the smallest individual resistor. (less or smaller)
  • A material that allows an electric current to pass easily is called a ________. (conductor)
  • ________ is the part of a circuit that provides a source of electrical energy. (battery or power supply)
  • A device that protects a circuit from excessive current by breaking the circuit is called a ________. (fuse)

Physics Electricity MCQ for PAF Initial Tests

Physics electricity MCQ are quite important in Pakistan Air Force academic assessments, which include branches like PAF Aeronautical Engineering, PAF Admin & Special Duty Branch, and PAF Air Defence Branch. Numerous subjects are covered in these electricity multiple-choice questions, including electromagnetic induction, electrical circuits, and Ohm’s law.

Candidates can improve their understanding of electrical concepts, which is essential for success in the PAF exams, by becoming familiar with these questions. In addition to assessing theoretical knowledge, these multiple-choice questions foster critical thinking and problem-solving abilities.

Electricity MCQs(Part-2)

  • ________ is a device that measures electric current. (ammeter)
  • Electric power is the rate at which ________ is carried or converted. (energy)
  • The SI unit of electric power is ________. (Watt)
  • Power is calculated by dividing ________ by elapsed time. (energy or work)
  • The formula for calculating power is ________. (power = energy/time or P = E/h)
  • A 1000 watt appliance would consume ________ kilowatts of energy if it ran for 10 hours. (10 or ten)
  • A device that measures electricity consumption is called a ________. (wattmeter)
  • The power consumed by an electrical device can be calculated by multiplying ________ by ________. (voltage and current)
  • When the voltage across a constant resistor is doubled, the power is ________. (quadruple or quadruple)
  • Gain factor indicates how efficiently ________ is used in an AC circuit. (power)
  • The power factor of a purely resistive circuit is ________. (1 or unit)
  • A power triangle is a graphical representation of the relationship between ________, ________ and ________ in an AC circuit. (apparent power, real power and reactive power)
  • Reactive power represents the power used by ________ components in an AC circuit. (inductive or capacitive)
  • Gain factor can be improved in AC circuits by ________. (power factor correction capacitors)
  • The power supplied by an AC source to a load is called ________ power. (real or active)
  • The product of transition, current and power factor gives ________ power in an AC circuit. (apparent)
  • An electric field is the region around a charged object where it exerts ________ on other charged objects. (strength)
  • The SI unit of electric field strength is ________. (newtons per coulomb or N/C)
  • The electric field lines point in the direction of the ________ force that a positive test charge would experience. (positive)
  • The strength of the electric field depends on the ________ of the source charge and the distance to the charge. (quantity or value)
  • An electric field inside a conductor causes ________ charge to move, canceling out any external electric field. (zero)
  • Electric potential is a scalar quantity that represents the ________ energy of a charge at a certain point in an electric field. (potential or stored)
  • The SI unit of electric potential is ________. (volt)
  • The change in electric potential between two points is equal to the ________ work done by a unit charge in moving the charge between the two points. (electrical)

Physics Electricity MCQ Questions Online

A strong grasp of physics electricity mcqs questions are essential for candidates taking the Army Education Officers and Army EME Officers exams. Electricity multiple-choice questions offer a thorough evaluation of candidates’ electrical expertise. These questions cover a wide range of electrical principles, from fundamental ideas like electric current and resistance to more complex subjects like electrical power and circuits.

Candidates can improve their exam scores and build confidence in their grasp of electricity by practicing these multiple-choice questions.

Electricity MCQs (Part-3)

  • The difference in electric potential between two points in an electric field is also known as ________. (voltage)
  • The electric potential is ________ at a point in the electric field when no work is done to move the charge to that point. (continuous or unchanged)
  • A positive test charge would experience an electric potential of ________ as it moves from a higher to a lower potential. (decrease or decline)
  • The ________ of an electric field is a measure of electric potential energy for a unit charge. (voltage or electric potential)
  • The magnitude of electric potential is ________, ie. it has a reference point or zero potential. (relative)
  • The electric potential produced by a point charge decreases with ________ distance from the charge. (inversely proportional or inversely proportional)
  • Equipotential surfaces are electric field surfaces with an electric potential of ________. (constant or same)
  • ________ is a substance or object that produces a magnetic field. (magnet or magnetic material)
  • The SI unit of magnetic field strength is ________. (tesla or T)
  • The magnetic field lines point from the ________ pole of the magnet to the ________ pole. (north, south)
  • The zone around a magnet, where you can observe its magnetic effect, is called ________. (magnetic field or region of magnetic field)
  • The ____ effect tells you that a current-carrying conductor in a magnetic field experiences a force. (magnetic or Lorentz)
  • The ____ rule determines the direction of the magnetic force on a current-carrying conductor. (right)
  • The strength of the magnetic force on a current-carrying conductor depends on the ________ of the current, the strength of the magnetic field, and the ________ between the conductor and the magnetic field. (magnitude or value, angle)
  • The phenomenon ____ states that a changing magnetic field induces an electromotive force (EMF) in a conductor. (electromagnetic or Faraday)
  • The SI unit of electromotive force is ________. (volts).
  • The ________ law of electromagnetic induction states that the EMF induced in a circuit is proportional to the rate of change of the magnetic flux through the circuit. (Faraday or Faraday’s Law)
  • ________ is a device that transforms mechanical energy into electrical energy by means of electromagnetic induction. (generator)
  • A device used to raise or lower the voltage of an AC circuit is called a ________. (transformer)
  • ________ is a temporary magnet created by passing an electric current through a coil of wire. (electromagnet)
  • The direction of the magnetic field produced by a current-carrying wire can be determined by the ________ rule. (right or right thumb)

Physics Electricity MCQ with Answers

Physics Electricity MCQ with Answers are a great resource for individuals who want to work in the military. Whether it’s the Army Navy, Navy Education Branch, or technical cadet training, these questions cover the fundamental subjects needed to pass the academic exams of the armed forces.

Technical branches like the Navy Weapon Engineering Branch and Navy Ordnance Branch, as well as other branches like the Army EME Officers Branch and the Navy Logistics Branch, require a comprehensive understanding of electricity mcq. Candidates may improve their knowledge and raise their chances of success by including these multiple-choice questions into their regular study sessions.

Electricity MCQs (Part-4)

  • _______ law states that the magnetic field produced by a current-carrying conductor forms concentric circles around the conductor. (Ampère or Ampère circuit)
  • In a direct current (DC) circuit, current flows in the ________ direction. (single or individual)
  • The symbol for a DC source (such as a battery) is ________. (straight or horizontal line)
  • In an alternating current (AC) circuit, the current periodically changes in the direction of ________ and ________. (magnitude and direction)
  • The frequency of an alternating current circuit refers to the number of ________ cycles per second. (full)
  • In most countries, the standard frequency of alternating current is ________ hertz (Hz). (50 or 60)
  • ________ law states that the voltage across a resistor in an electrical circuit is proportional to the current through it. (Ohm’s Law)
  • A device used to measure the electric current of a current is called a ________. (ammeter)
  • ________ law states that the total resistance of a series circuit is equal to the sum of the individual resistances. (Kirchhoff or Kirchhoff voltage)
  • In a parallel circuit, the voltage in each branch is ________ in the other branches. (same or equal)
  • ________ phenomenon refers to the phenomenon where the resistance of a conductor increases with temperature. (temperature or heat)
  • ________ is a device used to control the flow of current in a circuit. (switch)
  • The process of converting alternating current to direct current is called ________. (adjustment or repair)
  • ____ is an electrical charge storage device commonly used in electronic circuits. (capacitor)
  • ________ factor is a measure of the power transfer efficiency of an AC circuit. (power or power factor)
  • ________ transformer is a transformer that increases the voltage of an AC circuit. (Step-up or step-up transformer)
  • An electrical device that converts electrical energy into mechanical energy is called a ________. (engine)
  • SI unit of power is ________. (watt)
  • The main component of an electric motor is the ________ that produces the magnetic field. (stator)
  • In an electric generator, mechanical energy is converted into ________ energy. (electrical)
  • ________ law says that the back EMF of a motor is proportional to the speed of the motor. (Back EMF or Back Electromotive Force)
  • ________ is a device used to protect electrical circuits from excessive current. (fuse)
  • ________ phenomenon is a phenomenon in which a voltage is induced in a conductor when it is exposed to a changing magnetic field. (electromagnetic or Faraday)
  • ________ is a device used to convert electrical energy from one voltage level to another. (transformer)
  • ________ motor is a type of AC motor commonly used in home appliances. (induction or asynchronous)
  • ________ is a device used to store an electrical charge and release it in a controlled manner. (capacitor)
  • ________ phenomenon is a phenomenon in which a force is applied to a current-carrying conductor in a magnetic field. (Lorentz or Magnetic)
  • ____ is a device that transforms sound energy into electrical energy. (microphone)
  • ________ effect is a phenomenon where a semiconductor junction develops a voltage when exposed to light. (photoelectric or photovoltaic effect)

Electricity MCQ Physics most Repeated

Electricity MCQ Physics are helpful not just for the defense forces’ first academic exams but also as excellent study material for candidates. They go over many of the subjects that are necessary to have a strong foundation in physics. Those that concentrate on topics like energy, power, and electrical circuits can have a solid understanding of electricity.

Furthermore, these electricity multiple-choice questions meet the exacting requirements of the Army, Navy, and Pakistan Air Force exams, guaranteeing that applicants are ready for the difficulties they will encounter while pursuing a career in the armed forces.

Electricity MCQs (Part-5)

  • ________ law states that the force between two electric charges is proportional to the product of their charges and inversely proportional to the square of the distance between them. (Coulomb’s Law)
  • ________ is a device used to control the flow of electric current in a circuit. (switch)
  • ________ is a bipolar electronic component that allows current to flow in one direction only. (diode)
  • ________ is a basic electronic component that stores and releases electrical energy. (capacitor)
  • ________ is a three-pole electronic component that amplifies or alters electronic signals. (transistor)
  • ________ is a bipolar passive electronic component that stores electrical energy in a magnetic field. (inductor)
  • ________ is a passive electronic component that resists electric current. (resistor)
  • ________ is a basic electronic component that conducts current in a circuit. (switch)
  • ________ is a three-pole electronic component that regulates the voltage in a circuit. (voltage regulator)
  • ________ is a basic electronic component that produces a fixed voltage across its terminals. (battery)
  • ________ is a three-pole electronic component that amplifies or controls the voltage of an input signal. (op amp)
  • ________ is a passive electronic component that changes its resistance with changes in temperature. (thermistor)
  • ________ is a bipolar electronic component that emits light when current passes through it. (light emitting diode or LED)
  • ________ is a basic electronic component that converts alternating current (AC) to direct current (DC). (rectifier)
  • ________ is a three-pole electronic component that provides a stable reference voltage in the circuit. (voltage reference or voltage regulator)
  • ________ is a passive electronic component that allows current to flow in both directions. (bipolar transistor or BJT)
  • ________ is a bipolar electronic component that changes its resistance when light intensity changes. (light resistance or light-dependent resistance).

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