Home
Class 12
PHYSICS
A capacitor stores a charge of amount 0....

A capacitor stores a charge of amount 0.05 C when connected across a battery of 100 V for a sufficient time. How much energy will be relaeased by this capacitor when it is discharged?

Text Solution

Verified by Experts

Given, charge stored in the capacitor, `Q=0.05C`
Potentail difference across the capacitor, `V=100V`
Energy stored in the capacitor will be:
`U=(1)/(2) QV`
`=(1)/(2)xx0.05xx100`
`U=2.5J`
The same energy will be released when the capacitor is discharged.
Promotional Banner

Topper's Solved these Questions

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    MODERN PUBLICATION|Exercise PRACTICE PROBLEMS 1|10 Videos

  • ELECTROSTATIC POTENTIAL AND CAPACITANCE

    MODERN PUBLICATION|Exercise PRACTICE PROBLEMS 2|21 Videos

  • ELECTROMAGNETIC WAVES

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|14 Videos

  • MAGNETISM AND MATTER

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST FOR BOARD EXAMINATION|16 Videos

Similar Questions

Explore conceptually related problems

A capacitor of capacitance C is found to store a charge 480 muC when it is connected across a battery of potential difference V. Charge stored in the capacitor becomes 160muC when potential difference is reduced by 160V. Calculate C and V.

Two capacitors C_(1) = 2 muF and C_(2) = 6 muF in series, are connected in parallel to a third capacitor C_(3) = 4 muF . This arrangement is then connected to a battery of e.m.f = 2V , as shown in the figure. How much energy is lost by the battery in charging the capacitors

A capacitor is charged through a potential difference of 200V, when 0.1 C charge is stored in it. How much energy will it release, when it is discharge ?

When a capacitor is connected to a battery:

The plates of capacitor are charged to a potential difference of 100V and then connected across a resistor.When the potential difference between the plates of the capacitor is 60V ,what is the fraction of the stored energy which has been dissipated?

A capacitor stores 50mu c charge when connected across a battery . When the gap between the plates is filled with a dielectric , a charge of 100muc flows through the battery .Find the dielectric constand of the material inserted.

A capacitor of capacitance C is connected to a battery of V volts. A dielectric k=(7)/(3) is introduced betwene the plates of the capacitor when battery is connected.The ratio of energies stored in the capacitor without dielectric and with dielectric..

A capacitor of unknown capacitance is connected across a battery of V volts. The charge stored in it is 300 mu C. When potential across the capacitor is reduced by 100 V, the charge stored in it becomes 100 mu C. Calculate the potential V and the unknown capacitance. What will be the charge stored in the capacitor if the voltage applied had increased by 100V?