Article

Some Basic QA for Alternating Current Part-1

Fill in the blanks:

(1) In DC, pure Inductor behaves as……………………………..

(2) In DC, capacitor behaves as……………………………..

(3)In DC, capacitor exhibit…………………………..resistance (very high/very low)

(4) Capacitive Reactance………………………………with frequency.(increases/decreases)

(5)  In case of resonance, power In an AC circuit is…………………………….( maximum /minimum)

(6) In an AC circuit voltage across capacitor ………………………………the current in it (leads/lags)

(7) In an AC circuit voltage in inductor ………………………………the current in it (leads/lags)

(8)In an AC circuit current in capacitor ………………………………the voltage across it (leads/lags)

(9) In an AC circuit current in inductor ………………………………the voltage across it (leads/lags)

(10) When a rod of soft iron in inserted in an inductor its inductance………………...(increases/decreases)

Answers:-

1

2

3

4

5

conductor

Open circuit

very high

decreases

maximum

6

7

8

9

10

lags

leads

leads

lags

increases