MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Power in an AC Circuit

What is the a...

Question

What is the average power dissipation in an ideal capacitor in AC circuit ?

A

2 C V^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

\frac{1}{2} C V^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Z e r o

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

C V^{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $Z e r o$
Average power in AC circuits is given by $P = V_{r m s} I_{r m s} c o s ϕ$ for pure capacitive circuit $ϕ = 90^{o}$ so, P = 0.

Suggest Corrections

thumbs-up

0

Similar questions

C

is the capacity,

V

is the potential difference, the energy stored in a capacitor is given by

E = \frac{1}{2} {C V}^{2}

. The dimension of time in

{C V}^{2}

Q. Assertion :Average power consumed in an ac circuit is equal to average power consumed by resistors in the circuit. Reason: Average power consumed by capacitor and inductor is zero.

Q. The average power dissipation in pure inductance in AC circuit, is

Q. Column - I Column - II
A) electrical potential p) vector
B) energy stored q)

\frac{1}{2} C V^{2}

in a condenser
C) force between two r) scalar
capacitor plates
D) electric capacity s)

\frac{1}{2} \frac{C V^{2}}{d}

Q. The average power dissipated in A.C. circuit is 2 watt. If a current flowing through a circuit is 2 A and impedance is

1 Ω

, what is the power factor of the AC circuit?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Electrical Power in an AC Circuit

PHYSICS

Watch in App

explore_more_icon

Explore more

Power in an AC Circuit

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon