Home
Class 12
PHYSICS
A coil having inductance L and resistanc...

A coil having inductance L and resistance R is connected to a battery of emf `epsilon` at `t=0`. If `t_(1) and t_(2)` are the time for `90%` and `99%` completion of the current growth in the circuit, then `(t_(1))/(t_(2))` will be -

A

`1 : 2`

B

`2 : 1`

C

`1 : 5`

D

`5 : 1`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

A coil having inductance and L and resistance R is connected to a battery of emf in at t = 0 . If t_(1) and t_(2) are time for 90% and 99% completion of current growth in the circuit, then (t_(1))/(t_(2)) will be-

A coil having an inductance L and a resistance R is connected to a battery of emf epsilon . Find the time elapsed before, the magnetic field energy stored in the circuit reaches half its maximum value.

An inductor of inductance 10 mH and a resistance of 5 is connected to a battery of 20 V at t = 0. Find the ratio of current in circuit at t =  to current at t = 40 sec

An inductor of inductance 10 mH and a resistance of 5 is connected to a battery of 20 V at t = 0. Find the ratio of current in circuit at t =  to current at t = 40 sec

An inductor having self inductance L with its coil resistance R is connected across a battery of emf epsilon . When the circuit is in steady state t = 0, an iron rod is inserted into the inductor due to which its inductance becomes nL (ngt1) . When again circuit is in steady state, the current in it is

An indcutor having self inductance L with its coil resistance R is connected across a battery of emf elipson . When the circuit is in steady state t = 0, an iron rod is inserted into the inductor due to which its inductance becomes nL (ngt1). after insertion of rod, current in the circuit:

A coil of inductance 1 H and resistance 10Omega is connected to a resistanceless battery of emf 50 V at time t=0 . Calculate the ratio of rthe rate which magnetic energy is stored in the coil to the rate at which energy is supplied by the battery at t=0.1s .

A coil of inductance 5.0 mH and negligible resistance is connected to an alternating voltage V=10 sin (100t) . The peak current in the circuit will be:

An inductance L and a resistance R are first connected to a battery. After some time the battery is disconnected but L and R remain connected in a closed circuit. Then the current reduces to 37% of its initial value in

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