Class 10 Practice - Level 2 - Set 2 - Electricity

Total questions: 25

A 12V battery is connected to a resistor. If the current flowing through the resistor is 3A, what is the resistance of the resistor?

Topic: Electric Current and Ohm's Law

4Ω

3Ω

6Ω

2Ω

None

Which of the following materials is a good conductor of electricity?

Topic: Electrical Conductivity

Glass

Wood

Rubber

Aluminium

None

In a series circuit, if one component fails, the current in the circuit:

Topic: Series and Parallel Circuits

Increases

Decreases

Stops

Remains unchanged

None

In a voltage divider circuit with two resistors in series, the voltage drop across each resistor depends on:

Topic: Voltage Divider

The total resistance

The resistance of each resistor

The total current

The power supply voltage

None

A device uses 500W of power when connected to a 250V supply. What is the current drawn by the device?

Topic: Electric Power

1 A

2 A

4 A

0.5 A

None

An electric heater consumes 1500W when operated for 2 hours. The energy consumed is:

Topic: Electrical Energy

3 kWh

2 kWh

1.5 kWh

0.75 kWh

None

The internal resistance of a cell is measured in:

Topic: Internal Resistance

Ohms

Volts

Amperes

Farads

None

Kirchhoff’s Second Law (Voltage Law) states that the sum of the electromotive forces and the product of currents and resistances in any closed loop in a circuit is:

Topic: Kirchhoff's Second Law

Zero

Equal to the total current

Equal to the total resistance

Equal to the power

None

The electric field inside a charged conductor is:

Topic: Electric Field

Zero

Constant

Maximum

Minimum

None

10.

When capacitors are connected in series, the total capacitance is:

Topic: Capacitors in Series

The sum of individual capacitances

The product of individual capacitances

The reciprocal of the sum of reciprocals of individual capacitances

Equal to the smallest capacitance

None

11.

Electric potential at a point is defined as:

Topic: Electric Potential

The work done to bring a unit positive charge from infinity to that point

The force on a unit positive charge at that point

The current at that point

The resistance at that point

None

12.

In an electrical circuit, the energy dissipated as heat in a resistor is given by:

Topic: Energy Dissipation

$ \displaystyle \frac{{{{V}^{2}}}}{R}$

$\displaystyle {{I}^{2}}R$

None

13.

Coulomb’s Law is used to calculate:

Topic: Coulomb's Law

Electric current

Electric potential

Electric force between two charges

Magnetic force

None

14.

The drift velocity of electrons in a conductor is directly proportional to:

Topic: Drift Velocity and Current

The electric field

The resistance

The temperature

The length of the conductor

None

15.

The rate at which electrical energy is converted into another form of energy is called:

Topic: Electric Power

Voltage

Current

Resistance

Power

None

16.

Materials that do not allow electric current to flow easily are called:

Topic: Electrical Insulation

Conductors

Insulators

Semiconductors

Resistors

None

17.

In an electrochemical cell, the positive electrode is called:

Topic: Electrochemical Cells

Anode

Cathode

Electrolyte

Collector

None

18.

In a parallel circuit, the potential difference across each component is:

Topic: Potential Difference in Parallel

Different

The same

Zero

Dependent on resistance

None

19.

When a current flows through a conductor, it produces:

Topic: Magnetic Effects of Current

Electric field

Magnetic field

Both electric and magnetic fields

Neither electric nor magnetic fields

None

20.

At superconducting temperatures, the resistance of a superconductor:

Topic: Superconductors and Resistance

Increases

Decreases

Becomes zero

Remains constant

None

21.

In a capacitor, the material placed between the plates to increase capacitance is called:

Topic: Dielectric Materials

Conductor

Insulator

Dielectric

Semiconductor

None

22.

The process of charging an object by touching it with a charged body is called:

Topic: Electric Charge

Induction

Conduction

Polarization

Radiation

None

23.

The induced emf in a coil is proportional to:

Topic: Induced EMF

The length of the coil

The area of the coil

The rate of change of magnetic flux

The resistance of the coil

None

24.

An electric circuit containing both resistive and capacitive components is called:

Topic: Electric Circuit

Resistive circuit

Capacitive circuit

RC circuit

RL circuit

None

25.

The force experienced by a current-carrying conductor in a magnetic field is given by:

Topic: Current-Carrying Conductor

Ampere’s Law

Ohm’s Law

Fleming’s Left-Hand Rule

Faraday’s Law

None

1 out of 25

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Class 10 Practice - Level 2 - Set 2 - Electricity

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