Home
Class 12
PHYSICS
Assertion : The switch S shown in the fi...

Assertion : The switch `S` shown in the figure is closed at `t = 0`. Initial current flowing through battery is `(E)/(R + r)`
Reason : Initially capacitor was uncharged, so resistance offered by capacitor at `t = 0` is zero

A

Statement I is true, Statement II is True, Statement II is a correct explanation for Statement I.

B

Statement I is True, Statement II is True, Statement II is not a correct explanation for Statement I.

C

Statement I is True, Statement II is False.

D

Statement I is False, Statement II is True.

Text Solution

Verified by Experts

The correct Answer is:
A

a. Charge on capacitor `q = CE(1-e^(-t//CR_(eq)))`
`:. I = (dq)/(dt) = E/R_(eq) e^(-t//CR)`
at `t = 0 , I = E/R_(eq) = E/R+r`
Therefore, resistance offered by the capacitor is zero.
Promotional Banner

Topper's Solved these Questions

  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS|Exercise Integer Answer Type|11 Videos
  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS|Exercise True and False|3 Videos
  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS|Exercise Assertion-Reasoning Type|1 Videos
  • MECHANICAL PROPERTIES OF SOLIDS

    CENGAGE PHYSICS|Exercise Question Bank|4 Videos
  • MISCELLANEOUS VOLUME 5

    CENGAGE PHYSICS|Exercise Integer|12 Videos

Similar Questions

Explore conceptually related problems

The switch shown in figure is closed at t=0 find the charge throuh battery till time t=(L)/(R)

Charge flow through the battery after closing the switch is (initially all capacitors are unxharged) :

In the circuit shown, the switch 'S' is closed at t = 0 . Then the current through the battery steady state reached is

In the circuit shown in figure switch S is closed at time t=0 Current I from the battery at time t is given by

The switch S of the circuit is closed at t = 0. Find the current (in Amp.) through the capacitor when the switch S is closed at t = 0

In the circuit shown in figure-3.240 switch S is closed at time t=0. find the current through different wires and charge stored on the capacitor at any time t.

For the circuit shown in figure below, At t = 0, switch is closed, the initial current through resistor and final charge on capacitor are

In the circuit shown key is closed at t=0 with capacitor initially uncharged.

The current through the battery just after the switch S is Closed is (the capacitors are initially uncharged )