Class 10 Practice - Level 2 - Set 1 - Electricity

Total questions: 25

If a current of 2A flows through a conductor for 5 seconds, how much charge passes through the conductor?

Topic: Electric Current and Charge

10 C

7 C

5 C

2 C

None

If the potential difference across a 4Ω resistor is 12V, what is the current flowing through it?

Topic: Potential Difference

3 A

2 A

6 A

4 A

None

In a parallel circuit, the total resistance is:

Topic: Series and Parallel Circuits

Equal to the highest individual resistance

Less than the smallest individual resistance

Equal to the sum of individual resistances

More than the largest individual resistance

None

A 60W bulb is connected to a 120V power source. What is the current drawn by the bulb?

Topic: Electric Power

0.5 A

1 A

2 A

4 A

None

A resistor of 5Ω has a current of 2A flowing through it. What is the voltage across the resistor?

Topic: Ohm's Law

5 V

10 V

15 V

20 V

None

Two resistors, 4Ω and 6Ω, are connected in series. What is their equivalent resistance?

Topic: Combination of Resistors

10Ω

2.4Ω

1.5Ω

24Ω

None

The electromotive force (emf) of a cell is:

Topic: Electromotive Force

The force that moves electrons in the circuit

The energy provided per coulomb of charge

The resistance of the cell

The current in the circuit

None

Kirchhoff’s First Law (Current Law) states that at any junction in an electrical circuit:

Topic: Kirchhoff's First Law

The sum of currents entering the junction is equal to the sum of currents leaving the junction

The total voltage is zero

The sum of all resistances is zero

The total charge is zero

None

A resistor with a resistance of 8Ω has a current of 3A flowing through it. What is the power dissipated by the resistor?

Topic: Power Dissipation

24 W

72 W

96 W

144 W

None

10.

The intensity of an electric field at a point is defined as:

Topic: Electric Field Intensity

The force experienced by a unit positive charge at that point

The potential difference at that point

The current flow at that point

The resistance at that point

None

11.

The internal resistance of a cell causes:

Topic: Internal Resistance

The cell to deliver less voltage than its emf

The current to increase

The resistance to decrease

No effect on the cell’s performance

None

12.

A potential divider circuit is used to:

Topic: Potential Divider

Divide current

Provide a variable output voltage

Measure resistance

Increase power

None

13.

The unit of capacitance is:

Topic: Capacitance

Farad

Coulomb

Ampere

Ohm

None

14.

Resistivity of a material depends on:

Topic: Resistivity

Length of the conductor

Cross-sectional area of the conductor

Temperature

Both length and cross-sectional area

None

15.

A closed loop in which current can flow continuously is called:

Topic: Electric Circuit

An open circuit

A short circuit

A closed circuit

An incomplete circuit

None

16.

During electrolysis, positive ions move towards:

Topic: Electrolysis

The anode

The cathode

The electrolyte

None of the above

None

17.

The energy stored in a capacitor is given by:

Topic: Energy in a Capacitor

$\displaystyle \frac{1}{2}C{{V}^{2}}$

$ \displaystyle \frac{1}{2}CV$

$ \displaystyle {{C}^{2}}V$

None

18.

The reciprocal of resistance is called:

Topic: Conductance

Conductance

Capacitance

Inductance

Reactance

None

19.

Electric potential energy of a charge in an electric field depends on:

Topic: Electric Potential Energy

The amount of charge

The electric potential

The position of the charge in the field

All of the above

None

20.

An electric iron is rated 1000W, 220V. The current flowing through the iron when connected to 220V is:

Topic: Power Rating of Appliances

0.45 A

1.45 A

4.55 A

5.55 A

None

21.

Which of the following statements is true about the heating effect of electric current?

Topic: Heating Effect of Current

It is independent of the current

It causes the conductor to cool down

It increases with the increase in current

It is inversely proportional to the resistance

None

22.

The average velocity of free electrons in a conductor due to an electric field is called:

Topic: Drift Velocity

Acceleration

Drift velocity

Terminal velocity

Uniform velocity

None

23.

The heat produced in a conductor due to the flow of current is given by:

Topic: Resistive Heating

Joule’s law

Ohm’s law

Kirchhoff’s law

Faraday’s law

None

24.

Which of the following is true about superconductors?

Topic: Superconductors

They have zero resistance

They have very high resistance

They are used in heating devices

They cannot carry electric current

None

25.

Lenz's Law is related to:

Topic: Lenz's Law

The direction of induced current

The magnitude of induced current

The resistance in the circuit

The capacitance in the circuit

None

1 out of 25

Time's up

Class 10 Practice - Level 2 - Set 1 - Electricity

Welcome back