Class 10 Practice Level 1 – Electricity

Total questions: 40

The unit of electric current is:

Topic: Electric Current

Coulomb

Volt

Ampere

Ohm

None

Which particle is responsible for carrying charge in a conductor?

Topic: Electrical Energy

Proton

Neutron

Electron

Photon

None

Voltage is also known as:

Topic: Voltage

Electric resistance

Electric potential difference

Electric power

Electric current

None

The SI unit of resistance is:

Topic: Resistance

Ampere

Ohm

Volt

Joule

None

Ohm’s Law is represented by which equation?

Topic: Ohm's Law

V = IR

P = IV

Q = It

E = mc²

None

The symbol for a resistor in a circuit diagram is:

Topic: Circuit Symbols

A zigzag line

A straight line

A circle

A square

None

In a series circuit, the current:

Topic: Series Circuits

Is different in each component

Is the same through all components

Flows in multiple paths

Stops when it reaches a resistor

None

In a parallel circuit, the voltage across each component:

Topic: Parallel Circuits

Is the same

Is different

Varies with resistance

Is zero

None

The unit of electric power is:

Topic: Electric Power

Watt

Joule

Newton

Ampere

None

10.

Electrical energy is typically measured in:

Topic: Electric Charge

Volts

Amperes

Kilowatt-hours

Ohms

None

11.

Materials that allow electric current to flow easily are called:

Topic: Conductors and Insulators

Insulators

Semiconductors

Conductors

Resistors

None

12.

A complete path for electricity to flow is called:

Topic: Electric Circuit

A conductor

A resistor

A circuit

An insulator

None

13.

Which of the following is a safety device used to protect circuits from overloading?

Topic: Electrical Safety

Switch

Resistor

Fuse

Battery

None

14.

The region around a charged object where its electric force is exerted on other charges is called:

Topic: Electric Field

Electric potential

Electric field

Magnetic field

Gravitational field

None

15.

Potential difference is measured in:

Topic: Potential Difference

Amperes

Ohms

Volts

Joules

None

16.

Which factor does not affect the resistance of a wire?

Topic: Resistance Factors

Length

Material

Temperature

Colour

None

17.

In a metallic conductor, the current is due to the flow of:

Topic: Current Flow

Protons

Neutrons

Electrons

Ions

None

18.

If a resistor of 10 ohms is connected to a 5V battery, the current flowing through the resistor is:

Topic: Ohm's Law Application

0.5 A

1 A

2 A

5 A

None

19.

Which of the following can be a source of voltage?

Topic: Voltage Source

Resistor

Switch

Battery

Wire

None

20.

The main function of a resistor in an electric circuit is to:

Topic: Resistor Function

Increase current

Increase voltage

Reduce current

Store charge

None

21.

Which of the following is NOT a basic component of an electric circuit?

Topic: Electric Circuit Components

Source

Load

Resistor

Insulator

None

22.

Which instrument is used to measure electric current?

Topic: Measuring Current

Voltmeter

Ammeter

Ohmmeter

Thermometer

None

23.

In a direct current (DC) circuit, the current flows:

Topic: Electric Current Direction

Alternately

In one direction

In two directions

Randomly

None

24.

Electric power can be calculated using the formula:

Topic: Electric Power

P = IV

P = IR

P = V/R

P = I²R

None

25.

The resistance of a wire depends on:

Topic: Resistance

Length

Thickness

Material

All of the above

None

26.

Coulomb’s Law deals with:

Topic: Coulomb's Law

Electric current

Electric charge

Electric force between two charges

Magnetic force

None

27.

Which of the following is a good conductor of electricity?

Topic: Electrical Conductors

Rubber

Wood

Copper

Plastic

None

28.

Which of the following is an insulator?

Topic: Electrical Insulators

Copper

Aluminium

Silver

Rubber

None

29.

Which of the following is a device used to convert chemical energy into electrical energy?

Topic: Voltage Source

Resistor

Capacitor

Battery

Inductor

None

30.

If the voltage across a conductor is doubled, the current is:

Topic: Ohm's Law Verification

Halved

Doubled

Unchanged

Tripled

None

31.

The direction of the electric field is:

Topic: Electric Field

From positive to negative

From negative to positive

Circular

Random

None

32.

In a series circuit, the total potential difference is:

Topic: Potential Difference in Series

Equal to the sum of individual potential differences

Equal to the average of individual potential differences

Equal to the highest individual potential difference

Equal to the lowest individual potential difference

None

33.

A 100W light bulb is used for 10 hours. The energy consumed is:

Topic: Electric Power Consumption

1000 kWh

1 kWh

10 kWh

0.1 kWh

None

34.

The SI unit of electric charge is:

Topic: Unit of Charge

Volt

Ampere

Coulomb

Ohm

None

35.

A short circuit occurs when:

Topic: Short Circuit

The current is too high

The voltage is too low

There is a direct connection between positive and negative terminals

The circuit is open

None

36.

A circuit breaker is used to:

Topic: Circuit Breaker

Store electric charge

Increase voltage

Protect circuits from overcurrent

Reduce resistance

None

37.

The strength of an electric field is measured in:

Topic: Electric Field Strength

Newtons

Volts per meter

Amperes

Joules

None

38.

Electrostatic force is:

Topic: Electrostatic Force

Attractive only

Repulsive only

Both attractive and repulsive

Neither attractive nor repulsive

None

39.

If a 60W light bulb is used for 2 hours, how much energy is consumed?

Topic: Electric Power

60 Wh

120 Wh

240 Wh

30 Wh

None

40.

Which of the following represents the correct relationship between current (I), charge (Q), and time (t)?

Topic: Electric Current

I = Q × t

I = Q / t

I = Q + t

I = Q – t

None

1 out of 40

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Class 10 Practice Level 1 – Electricity

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