Electronics MCQs

Electronics MCQs

1. What does a rectifier do?

a) Converts AC to DC
b) Converts DC to AC
c) Increases voltage
d) Decreases voltage

2. What is the main function of a transformer?

a) Step up or step down voltage
b) Measure resistance
c) Generate power
d) Store electrical energy

3. What principle is utilized in the operation of an induction cooker?

a) Capacitance
b) Induction
c) Resistance
d) Conduction

4. What device is used to measure electrical power consumed by a circuit?

a) Voltmeter
b) Ammeter
c) Power meter
d) Wattmeter

5. What is the primary function of an LCR meter?

a) Measure inductance, capacitance, and resistance
b) Measure only inductance
c) Measure only capacitance
d) Measure only resistance

6. What does a function generator produce?

a) Random waveforms
b) Sine waves only
c) Square waves only
d) Various waveforms

7. What does a capacitor store?

a) Current
b) Voltage
c) Energy
d) Power