Sure, here are 50 multiple-choice questions c) Remain the same

(MCQs) for the chapter "Electricity" in Class 10 d) Become zero

Science:
8. The potential difference is measured in:
### Chapter 11: Electricity a) Amperes
b) Watts
1. The SI unit of electric charge is: c) Joules
a) Volt d) Volts
b) Coulomb
c) Ampere 9. The relationship between power (P), voltage
d) Ohm (V), and current (I) is:
a) P = VI
2. The instrument used to measure electric b) P = V/I
current is called: c) P = I/V
a) Voltmeter d) P = V²I
b) Ammeter
c) Galvanometer 10. The resistance of a wire depends on:
d) Ohmmeter a) Length
b) Cross-sectional area
3. The resistance of a conductor is measured in: c) Material
a) Volts d) All of the above
b) Amperes
c) Ohms 11. A device that converts chemical energy into
d) Coulombs electrical energy is called:
a) Motor
4. Ohm's Law is represented by the formula: b) Generator
a) V = IR c) Battery
b) V = I/R d) Transformer
c) I = VR
d) R = VI 12. The resistance of a conductor increases with:
a) Increase in temperature
5. The unit of electric power is: b) Decrease in temperature
a) Watt c) Increase in length
b) Joule d) Decrease in cross-sectional area
c) Volt
d) Ohm 13. The reciprocal of resistance is called:
a) Conductance
6. Which of the following is a non-conductor of b) Inductance
electricity? c) Capacitance
a) Copper d) Impedance
b) Iron
c) Plastic 14. Which of the following materials is used as a
d) Aluminium filament in an electric bulb?
a) Copper
7. If the resistance in a circuit is doubled, the b) Iron
current will: c) Tungsten
a) Double d) Aluminium
b) Halve
15. A parallel circuit has: d) Tesla
a) Single path for current flow
b) Multiple paths for current flow 23. The energy consumed by a 100 W bulb in 2
c) No path for current flow hours is:
d) Intermittent path for current flow a) 100 J
b) 200 J
16. The SI unit of electric current is: c) 720,000 J
a) Ohm d) 7,200 J
b) Volt
c) Ampere 24. Which of the following is a source of direct
d) Coulomb current (DC)?
a) Battery
17. The drift velocity of electrons in a conductor b) Generator
is directly proportional to: c) Transformer
a) Current d) Inductor
b) Voltage
c) Resistance 25. The voltmeter is always connected in:
d) Temperature a) Series
b) Parallel
18. In a series circuit, the total resistance is: c) Both series and parallel
a) The sum of individual resistances d) None of the above
b) The reciprocal of individual resistances
c) The product of individual resistances 26. The formula for calculating resistance using
d) None of the above resistivity (ρ) is:
a) R = ρL/A
19. The power dissipated in a resistor is given by: b) R = ρA/L
a) P = I²R c) R = L/ρA
b) P = IR² d) R = A/ρL
c) P = IR
d) P = I²/R 27. The drift velocity of electrons in a conductor
is:
20. A fuse is used to: a) Very high
a) Protect the circuit from overload b) Very low
b) Increase the voltage c) Equal to the speed of light
c) Decrease the resistance d) Equal to the thermal velocity of electrons
d) Convert AC to DC
28. The SI unit of resistivity is:
21. Which of the following is a good conductor of a) Ohm
electricity? b) Ohm meter
a) Rubber c) Ohm per meter
b) Glass d) Ohm meter squared
c) Silver
d) Wood 29. Which of the following factors does not affect
the resistance of a conductor?
22. The unit of capacitance is: a) Length
a) Ohm b) Temperature
b) Farad c) Material
c) Henry d) Color
 a) The sum of individual resistances
30. The potential difference across the ends of a b) The product of individual resistances
conductor is directly proportional to the: c) Less than the smallest individual resistance
a) Current flowing through it d) Greater than the largest individual resistance
b) Resistance of the conductor
c) Length of the conductor 38. Which of the following is a non-ohmic
d) Cross-sectional area of the conductor conductor?
a) Copper
31. A potentiometer is used to: b) Iron
a) Measure electric current c) Tungsten
b) Measure electromotive force d) Diode
c) Measure resistance
d) Measure power 39. The heating effect of electric current is used
in:
32. The reciprocal of conductance is: a) Electric heater
a) Resistance b) Electric iron
b) Inductance c) Electric bulb
c) Capacitance d) All of the above
d) Impedance
40. The resistance of a material is inversely
33. Which of the following is not a unit of electric proportional to its:
power? a) Length
a) Watt b) Cross-sectional area
b) Kilowatt c) Temperature
c) Joule d) Resistivity
d) Megawatt
41. The electric field inside a conductor is:
34. Which of the following devices is used to a) Zero
measure electric energy? b) Uniform
a) Voltmeter c) Non-uniform
b) Ammeter d) Infinity
c) Wattmeter
d) Energy meter 42. Which of the following is used to measure
high resistance?
35. The formula for calculating electric power is: a) Wheatstone bridge
a) P = VI b) Potentiometer
b) P = V²I c) Megger
c) P = I²V d) Galvanometer
d) P = V²/R
43. The current flowing through a circuit is
36. An electric current can produce: directly proportional to:
a) Heating effect a) Voltage
b) Magnetic effect b) Resistance
c) Chemical effect c) Power
d) All of the above d) Conductance

37. The equivalent resistance of two resistors in 44. The SI unit of electric potential is:
parallel is: a) Coulomb
 b) Volt
c) Ampere I hope these questions help you with your
d) Ohm studies. If you need more practice or have any
specific questions, feel free to ask!
45. Which of the following is not a source of
alternating current (AC)?
a) Battery
b) Generator
c) Alternator
d) Transformer

46. The power rating of an electrical appliance

indicates:
a) The amount of energy consumed per unit
time
b) The voltage required to operate the
appliance
c) The current required to operate the
appliance
d) The resistance of the appliance

47. The formula for calculating the energy

consumed by an electrical appliance is:
a) E = Pt
b) E = P/t
c) E = P²t
d) E = Pt²

48. In an electric circuit, the component that

opposes the flow of current is called:
a) Conductor
b) Insulator
c) Resistor
d) Capacitor

49. The electric power consumed by a device is

calculated using the formula:
a) P = IV
b) P = I²R
c) P = V²/R
d) All of the above

50. Which of the following factors affects the

resistance of a wire?
a) Material of the wire
b) Length of the wire
c) Cross-sectional area of the wire
d) All of the above