148. In a pure inductive circuit, the current will

A. lage behind the voltage by 90?

B. lead the voltage by 90?

C. remain in phase with the voltage

D. lag or lead the applied voltage

149. A circuit component that opposes the change in circuit voltage is

A. resistance

B. capacitance

C. inductance

D. all of these

150. An instaneous change in voltage is not possible in

A. a resistor

B. an inductor

C. a capacitor

D. a current source

151. In a pure capactive circuit

A. Power consumed in zero

B. Heat produced is zero

C. Work done is zero

D. All of these

152. In a pure capacitive circuit, the current will

A. lag behind the voltage by 90?

B. lead the voltage by 90?

C. remain in phase with voltage

D. none of these

153. The pf a practical inductor is

A. unity

B. zero

C. lagging

D. leading

154. A circuit of zero lagging power factor behaves as

A. an inductive circuit

B. a capacitive circuit

C. R-L circuit

D. R-C circuit

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