Home
Class 12
PHYSICS
The figure below shown a battery with em...

The figure below shown a battery with emf 15 V in a circuit with `R_(1) = 30 (Omega), R_(3) = 20 (Omega and L = 3.0 H`. The switch S is initially in the open position and is then closed at time t = 0. Then the graph which shows the correct variation of current through battery after switch S is closed

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
Initially no current in the inductor, so initial current
`(i_1)=(15)/(R_(1)+R_(2)+R_(3))=0.25A`
In steady state, no current in `R_(2) and R_(3)`. So final current through battery: `I_(2)=(15)/(R_1)=0.5A`.
Promotional Banner

Topper's Solved these Questions

  • MISCELLANEOUS VOLUME 5

    CENGAGE PHYSICS ENGLISH|Exercise Multiple Correct|34 Videos

  • MISCELLANEOUS VOLUME 5

    CENGAGE PHYSICS ENGLISH|Exercise Linked Comprehension|84 Videos

  • MISCELLANEOUS VOLUME 3

    CENGAGE PHYSICS ENGLISH|Exercise True and False|3 Videos

  • NUCLEAR PHYSICS

    CENGAGE PHYSICS ENGLISH|Exercise ddp.5.5|14 Videos

Similar Questions

Explore conceptually related problems

Figure shows a battery with emf 15 V in a circuit with R_1 = 30Omega, R_2 = 10 Omega, R_3 = 20 Omega and capacitance C = 10 muF . The switch S is initially in the open position and is then closed at time t= 0. What will be the fimal steady - state charge on capacitor?

In the following circuit the value of current i through the battery just after switch S is closed is

In the circuit diagram the current through the battery immediately after the switch S is closed is

Consider the circuit shown in figure. The current through the battery a long time after the switch S is closed is:

In the circuit shown, switch S is closed at time t = 0 . Find the current through the inductor as a function of time t .

Switch is closed at t = 0 then the current in the circuit at t = L/2R is

In the given circuit, the switch S is closed at time t=0 then select the correct statement for current l in resistance PQ as shown in the figure

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

Consider the situation shown in figure. The switch S is open for a long time and then closed. Find the charge flown through the battery when the switch S is closed.

In the circuit shown in figure switch S is closed at time t=0 . The charge which passes through the battery in one time constant is