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Electronic Mechanic
Electronic Mechanic Set-1
Active and Passive Components
19

Active and Passive Components MCQ with Answers

19) What is the power dissipated if 10mA current flows through a 10K Ohm resistor?

1000 milli watts

2000 milli watts

3000 milli watts

4000 milli watts

Answer is:

1000 milli watts

Active and Passive Components MCQ with Answers

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Related Active and Passive Components MCQ with Answers

20) What is the name of effect of changing current in one coil, induces EMF in nearby coil?

Coupling

Induction

Self induction

Mutual induction

Answer is:

Mutual induction

21) What is the main problem caused for severe pitting in relays?

Low contact current

Excessive contact current

Chatter during a slow release

Excessive number of operations

Answer is:

Excessive contact current

22) What is the effect on the transformer operated below the rated voltage?

Burn out windings

Leads to interwinding leakage

Transformer heated up excessively

Delivers reduced secondary voltage

Answer is:

Delivers reduced secondary voltage

23) What is the purpose of vacuum contactors in electrical panel?

Fast switching

Slow switching

Packet switching

Medium switching

Answer is:

Fast switching

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