The capacitor ' C prime is initially uncharged. Switch S 1 is closed for a long time while S 2 remains open. Now at t=0, S2 is closed while S1 is opened. All the batteries are ideal and connecting wires are resistanceless. Find INCORRECT statement:

Question

The capacitor ' C prime is initially uncharged. Switch S 1 is closed for a long time while S 2 remains open. Now at t=0, S2 is closed while S1 is opened. All the batteries are ideal and connecting wires are resistanceless. Find INCORRECT statement: <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/608594ef15cde009de533072102fc7df-.png" /> (A) At time t=0 (just after S2 is closed), reading of ammeter is ( E /5 R ) (B) At time t=0 (just after S2, is closed), reading of ammeter is zero (C) Heat developed till time t=5 RCln 2 in resistance 3 R is (9/40) C E2 (D) After time t>0 charge on the capacitor follows the equation CEe - t / 5 RC

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/e4c547f96e48d32bdf721aa9cf593f5b-.png" /> i=(E/5 R) equation of charge of capacitor q = CEe -t / τ q = ECe - t/5RC at t =5 RC ln 2 q =( EC /2)

Q. The capacitor ' $C^{'}$ is initially uncharged. 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. Find INCORRECT statement :

At time $t = 0$ (just after $S_{2}$ is closed), reading of ammeter is $\frac{E}{5 R}$

At time $t = 0$ (just after $S_{2}$ , is closed), reading of ammeter is zero

Heat developed till time $t = 5 RCl n 2$ in resistance $3 R$ is $\frac{9}{40} C E^{2}$

After time $t > 0$ charge on the capacitor follows the equation $CE e^{- t /5 RC}$

$i = \frac{E}{5 R}$
equation of charge of capacitor
$q = CE e^{- t / τ}$
$q = EC e^{- t /5 RC}$
at $t = 5 RC ln 2$
$q = \frac{EC}{2}$

Q. The capacitor ' C′ is initially uncharged. Switch S1​ is closed for a long time while S2​ remains open. Now at t=0,S2​ is closed while S1​ is opened. All the batteries are ideal and connecting wires are resistanceless. Find INCORRECT statement :

At time t=0 (just after S2​ is closed), reading of ammeter is 5RE​

At time t=0 (just after S2​, is closed), reading of ammeter is zero

Heat developed till time t=5RCln2 in resistance 3R is 409​CE2

After time t>0 charge on the capacitor follows the equation CEe−t/5RC