AC Circuits

The RC circuit stores energy in the form of

• Electric field

• Magnetic Field

RL circuit stores energy in the form of the

• Electric Field

• magnetic field.

Which of these circuits are economical

• RC

• RL

......... type of circuit gives poor performance when the noise signal becomes high.

• RL

• RC

If you are dealing with low power application, then .............circuit is appropriate

• RC

• RL

............. is the measure of the opposition that a circuit or a part of a circuit presents to electric current insofar as the current is varying or alternating.

• inductance

• Reactance

• capacitance

A heater is rated as 230 V, 10 kW. The value 230 V refers to

• average voltage

• peak voltage

• rms voltage

The RMS voltage of a sine wave is the same as the average voltage:

• TRUE

• FALSE

RMS voltage of a sine wave is the same as:

• Effective Voltage

• Average Voltage

• Digital equivalent

What is the phase relationship between current and voltage in an inductor?

• current lags voltage by 90°

• voltage lags current by 90°

• in phase