Home
Class 12
PHYSICS
In Fig. switch S is closed for a long ti...

In Fig. switch `S` is closed for a long time. At `t = 0`, if it is opened, then

A

total heat produced is resistor R after opening the switch is `(1)/(2) (LV^(2))/(R^(2))`

B

total heat produced in resistor `R_(2)` after opening the switch is `(1)/(2)(LV^(2))/(R^(2))((R_(1))/(R_(1)+R_(2)))`

C

heat produced in resistor` R_(1)` after opening the switch is `(1)/(2)(R_(2)LV^(2))/((R_(1)+R_(2))R^(2))`

D

Current through `R_(1)` just after opening the switch is `(V)/(R) ((R_(1))/(R_(1)+R_(2)))`

Text Solution

Verified by Experts

The correct Answer is:
B, C
Promotional Banner

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.53|20 Videos
  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.54|9 Videos
  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP No.51|20 Videos
  • CURRENT ELECTRICITY

    RESONANCE|Exercise High Level Problems (HIP)|21 Videos
  • ELECTRO MAGNETIC WAVES

    RESONANCE|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

In the circuit in Fig. switch S_(1) was closed for a long time . At time t = 0 the switch is opened. Find the angular frequency of oscillation of the charge on the capacitor.

In the circuit in Fig. switch S_(1) was closed for a long time . At time t = 0 the switch is opened. Find the maximum potentail difference across the plates of the capacitor after the switch is opened.

In the circuit shown in fig, switch S was closed for long time. At time t-0, teh switch is opened again. The maximum potential difference across teh plates of the capacitor after the switch is opened is

Initially the 900 mu F capacitor is charged to 100 V and the 100 mu F capacitor is uncharged in Fig. Then switch S_(2) is closed for time t_(1) , after which it is opened and at the same instant switch S_(1) is closed for time t_(2) and then opened. It is now found that 100 mu F capacitor is charged to 300 mu F capacitor is charged to 300 V . Find the minimum possible value of the time interval t_(1) and t_(2) .

Initally switch S_(1) is closed, after a long time, S_(1) is opened and S_(2) is closed. Find the heat produced in coil after long time.

A conducting ring is placed near a solenoid as shown in Fig.3.21. Find the direction of the induced current in the ring. (a) At the instant the switch in the circuit containing the solenoid is closed. (b) After the switch has been closed for a long time. (c) At the instant the switch is opened.

The capacitor 'C' is initially unchanged. Switch S_(1) is closed for a long time while S_(2) remains open. Now at t = 0 S_(2) is closed while S_(1) is opened. All the batteries are ideal and connecting wires are resistanceless

The switch is closed for a long time and then opened at time t = 0. Find the initial voltage across L after t = 0, which end is at higher potential P or Q?