ELECTRIC CIRCUITS QUIZ

Mica capacitor are characterised by all of following except

low leakage reactance.

accurate value.

low losses.

stable operation.

TRUE ANSWER : ?
YOUR ANSWER : ?

The switch S is the circuit shown in figure is ideal. If the switch is repeatedly closed for 1 ms and opened for 1 ms, the average value of i(t) is

0.5 mA.

0.25 mA.

0.35 mA.

1 mA.

TRUE ANSWER : ?
YOUR ANSWER : ?

KCL works on the principle of which of the following

both.

None of these

law of conservation of charge.

law of conservation of energy.

TRUE ANSWER : ?
YOUR ANSWER : ?

What is called a cycle in case of AC operation ?

When ac completes the (+)ve half, is called a cycle.

When ac goes through a complete (+)ve to (-)ve, is called a cycle.

Option A and C both.

When an alternating quantity completes the (–)ve cycle, is called a cycle.

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.

0.741 A.

1.414 A.

1.57 A.

0.494 A.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not equivalent to watts?

Ampere2 – Ohm.

Amperes/volt.

Ampere-volts.

Joules per second.

TRUE ANSWER : ?
YOUR ANSWER : ?

In RC series circuit R = 2Ω, C = 2μF and 10V dc is applied. Then what is the value of current?

5A

10A

0A

2A

TRUE ANSWER : ?
YOUR ANSWER : ?

A 230V, 50Hz voltage is applied to a coil having L = 5H and R = 2 Ohm in series with capacitance C. When the voltage across the coil is 400V, find the value of C?

8.51 µF.

10.54 µF.

4.78 µF.

1.8 µF.

TRUE ANSWER : ?
YOUR ANSWER : ?

Cascade connection of two port networks is analyzed through

ABCD parameters.

h parameters.

Y parameters.

Z parameters.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the correct relation?

AD-BC = 1.

all of these.

AB-CD = 1 .

AC-BD = 1.

TRUE ANSWER : ?
YOUR ANSWER : ?