Home
Class 12
PHYSICS
How much average power over complete cyc...

How much average power over complete cycle does an a.c. source supplied to a capacitor?

Text Solution

Verified by Experts

When ideal capacitor is connected with ac source the current to flow continuously but due to dielectric in between the plates of capacitor there is no current i.e.,
`I_(av) = 0`
`:. P_(av) = V xx I_(av)`
`P_(av) = 0`
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    OSWAAL PUBLICATION|Exercise Topic - 2 (Long answer Type Questions)|4 Videos

  • ALTERNATING CURRENT

    OSWAAL PUBLICATION|Exercise Topic - 2 (Numerical Problem)|11 Videos

  • ALTERNATING CURRENT

    OSWAAL PUBLICATION|Exercise Topic - 2 (Short Answer Type Questions -I)|3 Videos

  • 2020 Solved Paper I

    OSWAAL PUBLICATION|Exercise Exercise|41 Videos

  • ATOMS

    OSWAAL PUBLICATION|Exercise NUMERICAL PROBLEMS|11 Videos

Similar Questions

Explore conceptually related problems

S.T. average power over a complete cycle in a pure inductor connected to ac is zero.

Mention the average value of ac over one complete ac cycle

What is the a.c. resistance of the capacitor called ?

A resistor and a capacitor are connected in series with an a.c. source. If the potential drop across the capacitor is 5 V and that across resistor is 12 V, the applied voltage is

A 1.0 mH inductance, a 10 muF capacitance and a 5.0 ohm resistance are connected in series to an a.c. source. It is found that the inductor and the capacitor show equal reactances. The reactance should be nearest to

Give the qualitative explanation of the action of an LC oscillator in the absence of any external ac voltage source. Assume that the capacitor is charged initially.

A parallel plate capacitor is chared to a potential difference .V. by a d.c. source. The capacitor is then disconnected from the source. If the distance between the plates is doubled, state with reason how the following will change: energy stored in the capacitor.