Home
Class 12
PHYSICS
A coil of inductance 300mh and resistanc...

A coil of inductance `300mh` and resistance `2Omega` is connected to a source of voltage `2V`. The current reaches half of its steady state value in

A

0.05 s

B

0.1 s

C

0.15 s

D

0.3 s

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    MOTION|Exercise EXERCISE - 4 (LEVEL - II)|14 Videos
  • ALTERNATING CURRENT

    MOTION|Exercise EXERCISE - 3 (LEVEL - II)|5 Videos
  • 10 ROTATIONAL

    MOTION|Exercise Exercise - 4 (Level - II)|49 Videos
  • ATOMIC STRUCTURE & X-RAY

    MOTION|Exercise Exercise - 2|31 Videos

Similar Questions

Explore conceptually related problems

A solenoid of inductance 50 mH and resistance 10 Omega is connected to a battery of 6V. Find the time elapsed before the current acquires half of its steady - stae value.

A coil of inductance L = 300 mH and resitance R = 140 m Omega is connected to a constant voltage source. How soon will the coil current reach eta = 50 % of the steady-state value ?

Knowledge Check

  • A coil of inductance 300 mH and resistance 2Omega is connected to a source of voltage 2V. The current reaches half of its steady state value in

    A
    0.05 s
    B
    0.1 s
    C
    0.15 s
    D
    0.3 s
  • A coil of inductance 300 mH and resistance 2Omega is connected to a source of voltage 2V. The current reaches half of its steady state value in

    A
    0.05 s
    B
    0.1 s
    C
    0.15 s
    D
    0.3 s
  • A coil of inductance 300 mH and resistance 2W is connected to a source of voltage 2 V. The current reaches half of its steady state value in

    A
    `0.1 s `
    B
    `0.05 s`
    C
    `0.3 s`
    D
    `0.15 s`
  • Similar Questions

    Explore conceptually related problems

    A coil of inductance 300mH and resistance 2 Omega. The current reaches half of its steady state value in

    A coil of inductance 8.4 mH and resistance 6 Omega is connected to a 12 V battery. The current in the coil is 1.0 A at approximately the time.

    A coil of inductance 0.2 H and 1.0 W resistance is connected to a 90 V source. At what rate will the current in the coil grow at the instant the coil is connected to the source?

    A coil o finductanc e 8.4mH and resistance 6Omega is connected to a 12V battery. The current in the coil is 1.0A in the time (approx .)

    A coil of inductance 8.4 mH and resistance 6 (Omega) is connected to a 12 V battery. The current in the coil is 1.0 A at approximately the time