Question 1

What is the unit of electric current?

Accepted Answer

Ampere

Answer

Ohm

Answer

Volt

Answer

Coulomb

Question 2

What does a circuit need to be complete?

Accepted Answer

A closed pathway

Answer

A broken wire

Answer

A high resistance

Answer

An open switch

Question 3

What is the purpose of a resistor in a circuit?

Accepted Answer

To limit the flow of current

Answer

To provide heat

Answer

To increase voltage

Answer

To store energy

Question 4

What type of circuit has only one path for current to flow?

Accepted Answer

Series circuit

Answer

Open circuit

Answer

Parallel circuit

Answer

Complex circuit

Question 5

Which component stores electrical energy in an electric circuit?

Accepted Answer

Capacitor

Answer

Transistor

Answer

Inductor

Answer

Resistor

Question 6

What is the main function of a battery in an electrical circuit?

Accepted Answer

To provide voltage

Answer

To increase resistance

Answer

To act as a switch

Answer

To regulate current

Question 7

What do we call the opposition to the flow of electric current?

Accepted Answer

Resistance

Answer

Voltage

Answer

Charge

Answer

Current

Question 8

Which material is commonly used as a conductor of electricity?

Accepted Answer

Copper

Answer

Wood

Answer

Plastic

Answer

Rubber

Question 9

What device converts electrical energy into mechanical energy?

Accepted Answer

Motor

Answer

Resistor

Answer

Generator

Answer

Transformer

Question 10

What is the function of a fuse in an electrical circuit?

Accepted Answer

To protect against overload

Answer

To increase current

Answer

To store energy

Answer

To connect components

Question 11

What is the unit of electrical resistance?

Accepted Answer

Ohm

Answer

Watt

Answer

Ampere

Answer

Volt

Question 12

Which component is used to store electrical energy in a circuit?

Accepted Answer

Capacitor

Answer

Resistor

Answer

Inductor

Answer

Transistor

Question 13

What is the primary purpose of a resistor in a circuit?

Accepted Answer

To limit the flow of current

Answer

To convert energy

Answer

To store energy

Answer

To amplify signals

Question 14

What type of circuit allows current to flow in multiple paths?

Accepted Answer

Parallel circuit

Answer

Closed circuit

Answer

Series circuit

Answer

Open circuit

Question 15

What device measures the voltage in a circuit?

Accepted Answer

Voltmeter

Answer

Ohmmeter

Answer

Thermometer

Answer

Ammeter

Question 16

Which of the following statements is true about series circuits?

Accepted Answer

If one component fails, the entire circuit is broken

Answer

Current is the same at all points

Answer

Resistance decreases as more components are added

Answer

Voltage is divided among components

Question 17

What is the primary effect of increasing the voltage in a circuit?

Accepted Answer

Increase in current flow

Answer

Increase in resistance

Answer

No effect on current

Answer

Decrease in current flow

Question 18

What happens to the total resistance in a series circuit when more resistors are added?

Accepted Answer

The total resistance increases

Answer

The total resistance becomes zero

Answer

The total resistance remains the same

Answer

The total resistance decreases

Question 19

What is the function of a battery in an electrical circuit?

Accepted Answer

To provide a source of electrical energy

Answer

To increase resistance

Answer

To measure current

Answer

To lower voltage

Question 20

What is the main purpose of a switch in an electrical circuit?

Accepted Answer

To control the flow of electricity

Answer

To store energy

Answer

To measure voltage

Answer

To increase current

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