In the steady state condition the rate o...

In the steady state condition the rate of heat produced in a choke coil is `P`. The time constant of the choke coil is `tau`. If now the choke coil is short circuited, then the total head dissipated in the coil is

`Ptau`

`1/2Ptau`

`Ptau / ln 2`

`P tau ln 2`

Text Solution

Verified by Experts

The correct Answer is:

`P=i_0^2Rimplies i_0^2=P/Rimpliestau=L/R`
`:. L=tauR`
Heat dissipated `=1/2Li_0^2=1/2 (tauR)(P/R)=1/2Ptau`

Topper's Solved these Questions

ELECTROMAGNETIC INDUCTION
DC PANDEY ENGLISH|Exercise Level 2 More Than One Correct|10 Videos
ELECTROMAGNETIC INDUCTION
DC PANDEY ENGLISH|Exercise Level 2 Comprehension Based|13 Videos
ELECTROMAGNETIC INDUCTION
DC PANDEY ENGLISH|Exercise Level 1 Subjective|21 Videos
CURRENT ELECTRICITY
DC PANDEY ENGLISH|Exercise Medical entrances gallery|97 Videos
ELECTROMAGNETIC WAVES
DC PANDEY ENGLISH|Exercise Sec C|22 Videos

Similar Questions

Explore conceptually related problems

A choke coil has.

Choke coil is a series

Choose the correct statement about the choke coil

The power factor of a good choke coil is

Energy is stored in the choke coil in the form of

Choke coil works on the principle of

Power factor of an ideal choke coil (i.e. R = 0) is

Through a coil of resistance R charge is flowing in such a manner that in every time interval t_(0) the amount of charge flow is reduced by a factor of 1//2 . If a total of q charge flows through the coil in very long time, then the total amount of heat generated in the coil will be

Two coils have mutual inductance M = 3.25 xx 10^4H . The current i_1 in the ffrst coil increases at a uniform rate of 830 A //s . (a) What is the magnitude of the induced emf in the second coil? Is it constant? (b) Suppose that the current described is in the second coil rather than the first. What is the induced emf in the first coil?

DC PANDEY ENGLISH-ELECTROMAGNETIC INDUCTION-Level 2 Single Correct

Two circular loops P and Q are concentric and coplanar as shown in fig...
Text Solution
|
In the circuit shown in figure, the switch S is closed at t=0. If VL i...
Text Solution
|
In the figure shown as uniform magnetic field |B|=0.5T is perpendicula...
Text Solution
|
The figure shows a non conducting ring of radius R carrying a charge q...
Text Solution
|
A conducnting straight wire PQ of length l is fixed along as diameter ...
Text Solution
|
A uniformly wound long solenoid of inductance L and resistance R is cu...
Text Solution
|
When a choke coil carrying a steady current is short circuited, the cu...
Text Solution
|
In the steady state condition the rate of heat produced in a choke coi...
Text Solution
|
In the circuit shown in the figure initialy the switch in position 1 f...
Text Solution
|
The figure shows an L-R circuit the time constant for the circuit is
Text Solution
|
In figure, the switch is in the position 1 for long time, then the sw...
Text Solution
|
In a decaying L-R circuit, the time after which energy stores in the i...
Text Solution
|
Initially the switch is in positions 1 for as long time then shifted t...
Text Solution
|
When the switch S is closed at t=0, identify the correct statement jus...
Text Solution
|
Two metallic rings of radius R are rolling on a metalilc rod. A magnet...
Text Solution
|
In the figure, magnetic field points into the pane of paper and the co...
Text Solution
|
Find the current passing through battery immediately after key (K) is ...
Text Solution
|
In the circuit shown the key (K) is closed at t=0, the current through...
Text Solution
|
A loop shown in the figure is immersed in the varying magnetic field B...
Text Solution
|
A square loop of side as and a straight long wire are placed in the sa...
Text Solution
|