In an $A$.$C$. circuit,the potential difference $V$ and current $I$ are given respectively by $V = 100 \sin(100t) \text{ V}$ and $I = 100 \sin(100t + \frac{\pi}{3}) \text{ mA}$. The power dissipated in the circuit will be (Given: $\cos \frac{\pi}{3} = \frac{1}{2}$)

  • A
    $10^4 \text{ W}$
  • B
    $10 \text{ W}$
  • C
    $2.5 \text{ W}$
  • D
    $5 \text{ W}$

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In an $ac$ circuit with voltage $V$ and current $I$,the power dissipated is

What is power factor and voltage-current relationship in an $AC$ circuit?

In an $A.C.$ circuit,$V$ and $I$ are given by:
$V = 100 \sin(100 t) \text{ V}$
$I = 100 \sin(100 t + \pi/3) \text{ mA}$
The power dissipated in the circuit is:

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The $r.m.s.$ current in an $ac$ circuit is $2 \ A$. If the wattless current is $\sqrt{3} \ A$,the power factor is:

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