ac power

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Steady d.c voltage is also known as

Steady d.c voltage is also known as
  • A. square velocity
  • B. root mean square velocity
  • C. root velocity
  • D. velocity
  • Correct Answer: Option B

Amount of d.c voltage as compare to Vo is

Amount of d.c voltage as compare to Vo is
  • A. 50%
  • B. 60%
  • C. 70%
  • D. 80%
  • Correct Answer: Option C

Average power dissipated in resistor if sinusoidal p.d of peak value 25 V is connected across a 20 Ω resistor is

Average power dissipated in resistor if sinusoidal p.d of peak value 25 V is connected across a 20 Ω resistor is
  • A. 15.6 W
  • B. 15 W
  • C. 16 W
  • D. 17 W
  • Correct Answer: Option A

High voltages lead to

High voltages lead to
  • A. less power loss
  • B. more power loss
  • C. high current
  • D. high resistance
  • Correct Answer: Option A