ELECTRIC CIRCUITS QUIZ

Which of the followings is the expression for energy stored in a capacitor?

(1 / 2) Cv2.

C / v.

Cv.

C dv / dt.

TRUE ANSWER : ?
YOUR ANSWER : ?

A capacitor carries a charge of 0.1 C at 5 V. Its capacitance is

0.02 F

0.05 F

0.5 F

0.2 F

TRUE ANSWER : ?
YOUR ANSWER : ?

A 10 μF capacitor and 100 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow brightest?

10 Hz.

1 Hz.

1000 Hz.

100 Hz.

TRUE ANSWER : ?
YOUR ANSWER : ?

What is a resistor?

Inductor

Test

Capacitor

Hello

TRUE ANSWER : ?
YOUR ANSWER : ?

Three identical inductors are connected in delta with a 220 V, 50 Hz, 3 - φ, supply. If the phase current is 24 A, then what is the value of each of the inductance?

0.058 H.

None of these.

0.029.

0.049 H.

TRUE ANSWER : ?
YOUR ANSWER : ?

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 : ?

Rms value is defined based on which of the following?

Heating effect

Charge transfer

Current

Voltage

TRUE ANSWER : ?
YOUR ANSWER : ?

In the network shown, what is the current I in the direction shown?

1 / 3 A.

5 / 6 A.

0 A.

4 A.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which metal is deposited for electro forming?

Nickel.

Silver.

Chromium.

Iron.

TRUE ANSWER : ?
YOUR ANSWER : ?

For the resonance circuit ω0 = 105, Q = 50, R = 400 Ω the value of C is

1000 pF.

500 pF.

250 pF.

125 pF.

TRUE ANSWER : ?
YOUR ANSWER : ?

↑