1. Capacitive susceptance is a measure of ?

a purely capacitive circuit's ability to resist the flow of current

purely capacitive circuit's ability to pass current

the extent of neutralisation of reactive power in a circuit

reactive power in a circuit

Answer: purely capacitive circuit's ability to pass current

Explanation:


2. If two sinusoids of the same frequency but of different amplitudes and phase angles are subtracted, the resultant is ?

a sinusoid of double the frequency

not a sinusoid

a sinusoid of the same frequency

a sinusoid of half the original frequency

Answer: a sinusoid of the same frequency

Explanation:


3. Which of the following is non-linear circuit parameter ?

Wire wound resistor

Transistor

Inductance

Condenser

Answer: Transistor

Explanation:


4. The peak value of a sine wave is 200 V. Its average value is ?

282.8 V

200 V

141.4 V

127.4 V

Answer: 127.4 V

Explanation:


5. An ideal voltage source should have ?

zero source resistance

infinite source resistance

large value of e.m.f

small value of e.m.f.

Answer: zero source resistance

Explanation:


6. Which of the following refers to a parallel circuit ?

The equivalent resistance is greater than any one of the resistors

The current through any one element is less than the source current

The current through each element is same

The voltage across element is different

Answer: The current through any one element is less than the source current

Explanation:


7. In a parallel R-C circuit, the current ..... always the applied voltage ?

remains in phase with

lags

leads

none of the above

Answer: leads

Explanation:


8. All the rules and laws of D.C. circuit also apply to A.C. circuit containing ?

resistance only

capacitance only

inductance only

all above

Answer: resistance only

Explanation:


9. Power factor of the following circuit will be zero ?

capacitance

both D. and A.

resistance

inductance

Answer: both D. and A.

Explanation:


10. The best place to install a capacitor is ?

far away from the inductive load

any where

very near to inductive load

across the terminals of the inductive load

Answer: across the terminals of the inductive load

Explanation: