Home
Class 12
PHYSICS
In the given circuit, one of the capacit...

In the given circuit, one of the capacitors was connected to a voltage `V_(0)` and then at the moment `t = 0` was shorted by means of the switch. Find the amount of heat generated.

A

`CV_(0)^(2)`

B

`(1)/(5)CV_(0)^(2)`

C

`(1)/(3)CV_(0)^(2)`

D

`(1)/(4)CV_(0)^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D

Potential drop across both capacitors are same
`q=CV_(0)," "u_(i)=(1)/(2)CV_(0)^(2)`
`DeltaH=u_(f)-u_(i)," "u_(f)=(1)/(2)((q//2)^(2))/(C)+(1)/(2)((q//2)^(2))/(C)=(1)/(4)CV_(0)^(2)`
Promotional Banner

Topper's Solved these Questions

  • JEE MAIN REVISION TEST - 28

    VMC MODULES ENGLISH|Exercise PHYSICS (SECTION-2)|5 Videos
  • JEE MAIN REVISION TEST - 27 - JEE -2020

    VMC MODULES ENGLISH|Exercise PHYSICS (SECTION 2)|5 Videos
  • JEE MAIN REVISION TEST - 29 (2020)

    VMC MODULES ENGLISH|Exercise PHYSICS|25 Videos

Similar Questions

Explore conceptually related problems

A capacitor of capacitance 5muF is connected to a source of constant emf of 200 V ,Then switch was shifted to contact 2 from contact 1. Find the amount of heat generated in the 400Omega resistance.

In given LR circuit the switch S is closed at time t=0 then

A coil of inductance L=50muH and resistance = 0.5Omega is connected to a battery of emf = 5V. A resistance of 10Omega is connected parallel to the coil. Now, at the same instant the connection of the battery is switched off. Then, the amount of heat generated in the coil after switching off the battery is

n the circuit shown in the figure, the capacitor C is charged to a potential V_(o) The heat generated and charge flow, in the circuit to when the switch S is closed, is

A capacitor of capacitance C is charged to a potential difference V_(0) and then connected with a resistance and a battery of EMF 3V_(0) such that the positively charged plate of the capacitor is connected to the positive terminal of the battery. The total heat generated in the resistance until the current in the circuit becomes zero is n(CV_(0)^(2)) . the value of n is ________.

In the given circuit Fig the switch is closed at t = 0 . Choose the correct answers.

In the circuit shows in Fig the capacitor is initially uncharged and the two - way switch is connected in the position BC . Find the current through the resistence R as a function of time t . After time t = 4 ms, the switch is connected in the position AC . Find the frequency of oscillation of the capacitor of the circuit in the position, and the maximum charge on the capacitor C . At what time will the energy stored in the capacitor be one-half of the total energy stored in the circuit? It is given L = 2 xx 10^(-4)H, C = 5 mF, R = (In 2)/(10) Omega and emf of the battery = 1 V .

In the circuit shown below, the switch is in position 1 for a long time. At some moment after that the switch is thrown in position 2. The quantity of heat generated in the resistance of 375 ohm after the switch is changes to position 2 is :

In the circuit shown in figure, the capacitor is charged with a cell of 5V .If the switch is closed at t=0 , then at t=12s , charge on the capacitor is

A parallel plate capacitor A is filled with a dielectric whose dielectric constant varies with applied voltage as K = V. An identical capacitor B of capacitance C_0 with air as dielectric is connected to voltage source V_0 = 30V and then connected to the first capacitor after disconnecting the voltage source. The charge and voltage on capacitor.