ELECTRIC CIRCUITS QUIZ

The indication of the state of charge of a battery is best given by

temperature of electrolyte.

colour of electrolyte.

specific gravity of electrolyte.

level of electrolyte.

TRUE ANSWER : ?
YOUR ANSWER : ?

In series RLC circuit to get Q>1, which of the following is required?

All of these

XL = R

XL < R

XL > R

TRUE ANSWER : ?
YOUR ANSWER : ?

Dependent source of current and voltage are those which have

independent of any other network variable.

unidirectional characteristic.

All of these

output dependent on input.

TRUE ANSWER : ?
YOUR ANSWER : ?

An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are

40 Ω and 40 Ω.

25 Ω and 5 Ω.

40 Ω and 200 Ω.

50 Ω and 200 Ω.

TRUE ANSWER : ?
YOUR ANSWER : ?

The maximum value of a current wave is 2A. If the form factor of a current wave is 1.5 and the peak factor is 2.7, find the average value in Amperes.

1.57 A.

0.494 A.

1.414 A.

0.741 A.

TRUE ANSWER : ?
YOUR ANSWER : ?

A conductor of length l meters moves at right angles to a uniform magnetic field of flux density B = 1.5 T. if the velocity of revolution of the conductor is 50 ms-1 then induced e.m.f. in the conductor is

100 V.

125 V.

0 V.

75 V.

TRUE ANSWER : ?
YOUR ANSWER : ?

Electro-chemical equivalent is usually expressed in

mg per kVA.

mg per kW.

mg per volt.

mg per coulomb.

TRUE ANSWER : ?
YOUR ANSWER : ?

If c1 = 8 μF, c2 = 4 μF, c3 = 7 μF c1, c2 are in series with c3 in parallel; effective capacitance will be

6 μF.

3 μF.

9.67 μF.

2.21 μF.

TRUE ANSWER : ?
YOUR ANSWER : ?

A coil with negligible resistance has 50 V across it with 10 mA. The inductive reactance is

5000 ohms.

500 ohms.

1000 ohms.

50 ohms.

TRUE ANSWER : ?
YOUR ANSWER : ?

Sulphation in a lead acid battery occurs due to

fast charging.

incomplete charging.

heavy charging.

trickle charging.

TRUE ANSWER : ?
YOUR ANSWER : ?

↑