ELECTRIC CIRCUITS QUIZ

Which of the following can not be connected in series unless they are identical?

Voltage source.

Resistance.

Both of above.

Current source.

TRUE ANSWER : ?
YOUR ANSWER : ?

A parallel plate capacitor with air as dielectric, force between plate is F. If capacitor is now immersed water of dielectric εr, force between plate will be –

F.

εr/F.

F εr.

0.

TRUE ANSWER : ?
YOUR ANSWER : ?

A paper capacitor is usually available in form of

disc.

meshed plates.

rolled foil.

tubes.

TRUE ANSWER : ?
YOUR ANSWER : ?

Efficiency of electrical machines should be calculated by measuring

output and input.

losses.

losses and output.

losses and input.

TRUE ANSWER : ?
YOUR ANSWER : ?

From the given figure find the R3

25 kilo ohm

25 mili ohm

25 mega ohm

25 ohm

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 : ?

During charging, the electrolyte of a lead acid battery becomes

there is no change in electrolyte.

stronger.

diluted with water.

weaker.

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 : ?

In RLC parallel circuit circuit current through inductor is more than current through capacitor. Then what is the power factor of the circuit?

lagging

zero

leading

unity

TRUE ANSWER : ?
YOUR ANSWER : ?

The inductive reactance of an electric circuit is 200 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

50 Ohms.

400 Ohms.

100 Ohms.

200 Ohms.

TRUE ANSWER : ?
YOUR ANSWER : ?

↑