class 10th Electricity MCQBased On PYQ

Class 10th Electricity MCQs

1. Which of the following is the SI unit of electric charge?

   • a) Ampere
   • b) Coulomb
   • c) Volt
   • d) Ohm

2. Electric current is the flow of:

   • a) Atoms
   • b) Electrons
   • c) Neutrons
   • d) Protons

3. Which instrument is used to measure electric current?

   • a) Voltmeter
   • b) Ammeter
   • c) Ohmmeter
   • d) Thermometer

4. The potential difference between two points is measured in:

   • a) Ohms
   • b) Watts
   • c) Amperes
   • d) Volts

5. Which of the following represents Ohm’s Law?

   • a) V = IR
   • b) I = VR
   • c) R = VI
   • d) P = VI

6. If the resistance in a circuit increases, the current will:

   • a) Increase
   • b) Decrease
   • c) Stay the same
   • d) Be zero

7. In a series circuit, the current is:

   • a) Different at different points
   • b) Same through each component
   • c) Zero
   • d) Infinite

8. In a parallel circuit, the voltage across each component is:

   • a) Different
   • b) Zero
   • c) Same
   • d) Half of the total voltage

9. The resistance of a conductor is directly proportional to:

   • a) Its length
   • b) Its area of cross-section
   • c) The current flowing through it
   • d) The voltage across it

10. Which of the following has the highest resistivity?

    • a) Copper
    • b) Aluminum
    • c) Nichrome
    • d) Silver

11. Electrical power is the product of:

    • a) Voltage and current
    • b) Current and resistance
    • c) Voltage and resistance
    • d) Voltage and charge

12. The unit of electrical power is:

    • a) Joule
    • b) Watt
    • c) Coulomb
    • d) Volt

13. Which device is used to measure electrical energy consumed in a circuit?

    • a) Voltmeter
    • b) Ammeter
    • c) Wattmeter
    • d) Energy meter

14. The power consumed by a device with a current of 2 A and a voltage of 220 V is:

    • a) 110 W
    • b) 220 W
    • c) 440 W
    • d) 880 W

15. The energy consumed by a 100 W bulb in 2 hours is:

    • a) 200 J
    • b) 720000 J
    • c) 200 Wh
    • d) 7200 Wh

16. Which of the following is a good conductor of electricity?

    • a) Rubber
    • b) Glass
    • c) Copper
    • d) Wood

17. A device used to break or complete an electric circuit is called:

    • a) Resistor
    • b) Switch
    • c) Battery
    • d) Capacitor

18. Which of the following components is used to limit the current in a circuit?

    • a) Capacitor
    • b) Resistor
    • c) Inductor
    • d) Diode

19. A fuse wire is made of:

    • a) High resistivity material
    • b) Low resistivity material
    • c) High conductivity material
    • d) Insulating material

20. The unit of resistance is:

    • a) Ampere
    • b) Volt
    • c) Ohm
    • d) Watt

21. In a series circuit, if one component fails, the others:

    • a) Will also fail
    • b) Will continue to work
    • c) Will short circuit
    • d) Will increase resistance

22. In a parallel circuit, if one component fails, the others:

    • a) Will also fail
    • b) Will continue to work
    • c) Will short circuit
    • d) Will decrease resistance

23. In a series circuit with three resistors, the total resistance is:

    • a) The sum of the individual resistances
    • b) The product of the individual resistances
    • c) The average of the individual resistances
    • d) Zero

24. In a parallel circuit with three resistors, the total resistance is:

    • a) The sum of the individual resistances
    • b) The product of the individual resistances
    • c) Less than the smallest resistance
    • d) Equal to the largest resistance

25. If the voltage across a parallel circuit is 12 V, the voltage across each resistor is:

    • a) 12 V
    • b) 6 V
    • c) 4 V
    • d) Depends on the resistance

26. Kirchhoff's Current Law (KCL) states that:

    • a) The total voltage in a circuit is zero
    • b) The sum of currents entering a junction equals the sum of currents leaving the junction
    • c) The total resistance in a series circuit is constant
    • d) The voltage across a parallel circuit is the same

27. Kirchhoff's Voltage Law (KVL) states that:

    • a) The total current in a circuit is constant
    • b) The sum of the voltages around a closed loop is zero
    • c) The sum of currents entering a junction equals the sum of currents leaving the junction
    • d) The total resistance in a parallel circuit is zero

28. According to KCL, if 2 A enters a junction and 1.5 A leaves the junction, the remaining current is:

    • a) 0.5 A entering
    • b) 0.5 A leaving
    • c) 2.5 A entering
    • d) 2.5 A leaving

29. According to KVL, if the voltage drops in a closed loop are 5 V, 3 V, and 2 V, the total voltage supplied must be:

    • a) 5 V
    • b) 10 V
    • c) 7 V
    • d) 8 V

30. In a circuit, the sum of currents entering a junction is 3 A. If two currents of 1 A and 0.5 A leave the junction, the remaining current must be:

    • a) 2 A entering
    • b) 1.5 A leaving
    • c) 2 A leaving
    • d) 1.5 A entering

31. A device that automatically stops the flow of electricity in a circuit during a fault is called:

    • a) Resistor
    • b) Capacitor
    • c) Fuse
    • d) Battery

32. Which of the following is used for the protection of appliances from overcurrent?

    • a) Resistor
    • b) Fuse
    • c) Capacitor
    • d) Inductor

33. The rating of a fuse wire is related to:

    • a) Voltage
    • b) Current
    • c) Power
    • d) Resistance

34. A circuit breaker is:

    • a) A manual switch to turn on/off the circuit
    • b) An automatic switch that stops the current in case of a fault
    • c) A device to measure current
    • d) A device to store charge

35. Earthing is provided in electrical appliances to:

    • a) Protect from overload
    • b) Prevent electric shocks
    • c) Increase efficiency
    • d) Reduce power consumption

36. Electricity is generated in power stations using:

    • a) Chemical energy
    • b) Thermal energy
    • c) Mechanical energy
    • d) All of the above

37. The function of an electric meter is to measure:

    • a