# A.C Fundamentals, Circuits and Circuit Theory Multiple Choice Questions

## A.C Fundamentals, Circuits and Circuit Theory

Question 1.

Which of the following refers to a parallel circuit?

 A. The current through each element is same B. The voltage across element is in proportion to it's resistance value C. The equivalent resistance is greater than any one of the resistors D. The current through any one element is less than the source current
Explanation :

Explanation Not Provided

Question 2.

In any A.C. circuit always

 A. Apparent power is more than actual power B. Reactive power is more than apparent power C. Actual power is more than reactive power D. Reactive power is more than actual power
Explanation :

Explanation Not Provided

Question 3.

The transient currents are associated with the

 A. Changes in the stored energy in the inductors and capacitors B. Impedance of the circuit C. Applied voltage to the circuit D. Resistance of the circuit
Explanation :

Explanation Not Provided

Question 4.

The inductance of a coil can be increased by

 A. Increasing core length B. Decreasing the number of turns C. Decreasing the diameter of the former D. Choosing core material having high relative permeability
Explanation :

Explanation Not Provided

Question 5.

Power factor of an electrical circuit is equal to

 A. R/Z B. Cosine of phase angle difference between current and voltage C. Ratio of useful current to total current Iw/I D. All above
Explanation :

Explanation Not Provided