ELECTRIC CIRCUITS QUIZ

KCL works on the principle of which of the following

law of conservation of energy.

None of these

law of conservation of charge.

both.

TRUE ANSWER : ?
YOUR ANSWER : ?

Two battery having unequal emf

both a and d

cannot be connected in series.

cannot be connected in parallel.

can be connected in series only.

TRUE ANSWER : ?
YOUR ANSWER : ?

For balanced star load, if unbalanced line current are IR, IY, IB equal to - j10, - j10 and - j20 respectively, the neutral current will be equal to

(-8.66 - j5) A.

(8.66 - j5) A.

(8.66 + j5) A.

(-9.66 + j5) A.

TRUE ANSWER : ?
YOUR ANSWER : ?

If P is the power of a star connected system then what will be power of an equivalent delta connected system?

3P

None of these

P

P/3

TRUE ANSWER : ?
YOUR ANSWER : ?

If a resistor is connected across the voltage source and the frequency of voltage and current wave form is 50Hz, then what is frequency of instantaneous power

150 Hz.

50 Hz.

0 Hz.

100 Hz.

TRUE ANSWER : ?
YOUR ANSWER : ?

During electroplating the weight of substance deposited depends on

room temperature.

shape of article.

quantity of electricity.

atmospheric humidity.

TRUE ANSWER : ?
YOUR ANSWER : ?

When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of heater will

decrease.

increase.

none of these.

remain constant.

TRUE ANSWER : ?
YOUR ANSWER : ?

What is called the frequency in AC operation?

No. of cycles made per second.

No. of (+) ve quadrature made per second.

No. of wave made per second.

No. of (-) ve quadrature made per second.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which variety of copper has the best mechanical strength ?

Annealed copper.

Soft copper.

Cast copper.

Hard drawn copper.

TRUE ANSWER : ?
YOUR ANSWER : ?

The voltage across the 1kΩ resistor between the nodes A and B of the network shown in the given figure is

2 V.

-2 V.

1 V.

-1 V.

TRUE ANSWER : ?
YOUR ANSWER : ?

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