Revision 1

1. Instantaneous voltage is the product of resistance and _____________ current in a resistive circuit.

• Instantaneous

• Average

• RMS

• Peak

Find the value of the instantaneous voltage if the resistance is 2 ohm and the instantaneous current in the circuit is 5A.

• 12V

• 5 V

• 10V

• 20V

The power for a purely resistive circuit is zero when?

• Current is zero

• Voltage is zero

• Both current and voltage are zero

• Either current or voltage is zero

Calculate the resistance in the circuit if the rms voltage is 20V and the rms current is 2A.

• 2 ohm
  

• 5 ohm
  

• 10 ohm
  

• 20 ohm

In purely _____ circuit, the current flowing

and voltage applied are in phase with each

other.

• resistive

• inductive

• capacitive

• none of the above

In purely _______ circuit, current lags voltage

by 90 degrees.

• resistive

• inductive

• capacitive

• none of the above