A carspark coil developes an induced e.m...

A carspark coil developes an induced e.m.f. of 40000 V in the secondary when when current in primary changes form 4 A to zero in `10 mu s`. What is the mutual inductance of the coil ?

Text Solution

Verified by Experts

The correct Answer is:

0.1 H

Topper's Solved these Questions

ELECTRICAL INSTRUMENTS
SL ARORA|Exercise Problem for self practice|81 Videos
ELECTROMAGNETIC WAVES
SL ARORA|Exercise Problem for self-practice|21 Videos

Similar Questions

Explore conceptually related problems

The average emf induced in the secondary coil is 0.1 V when the current in the primary coil changes from 1 to 2A in 0.1 s .What is the mutual inductance of the coils.

An e.m.f. of 0.5 V is developed in the secondary coil, when current in primary coiol changes form 5.0 A to 2.0 A in 300 millisec. Calculate the mutal inductance of tow coils.

An emf of 50 mV is induced in a coil . When the current in the neighbouring coil changes form 10A to 5 A in 0.1 s . What is the mutal inductance of the two coils ?

In a car spark coil an e.m.f. of 40000 volts is induced in a secondary when the primary current changes from 4A to 0 in 10 mu s . The mutual inductance between the primary and secondary winding of this spark coil is (nxx(1)/(10)) henry, then n=

An average induced e.m.f of 2V appers in a coil when the current in it is changed from 10 A in opposite direction in 0.5 sec. The self inductance of the coil is

An emf of 40 kV is induced in the secondary of car spark coil when the current in primary changes from 5A to 2A in 20 mus . Calculate the mutual inductance between the primary and secondary windings of this coil.

In a coil when current changes from 10 A to 2A in time 0.1 s, induced emf is 3.28 V. What is the self-inductance of coil?

An average induced e.m.f. of 1V appears in a coil when the current in it is changed from 10 A in one direction to 10A in opposite direction in 0.5 sec. self-inductance of the coil is

If the back e.m.f. induced in a coil, when current changes from 1A to zero in one millisecond, is 5 volts, the self-inductance of the coil is

SL ARORA-ELECTROMAGNETIC INDUCTION-All Questions

Shows a square loop having 100 turns, an area of 2.5 xx10^(-3) m^2 an...
Text Solution
|
A rod closing the circuit shown in Fig moves along a U shaped wire at ...
Text Solution
|
Fig. 12.32 shows a long, rectangular, conducting loop of with l, mass ...
Text Solution
|
A coil has 50 turns and its area is 500 cm^(2). It is rotating at the ...
Text Solution
|
Calculate the maximum emf induced in a coil of 100 turns and 0.01 m^(2...
Text Solution
|
A magnetic flux of 8xx10^(-4) weber is linked with each turn of a 200 ...
Text Solution
|
Calculate the induced emf in a coil of 10 H inductance in which the cu...
Text Solution
|
Calculate the self- inductance of a coil when a change of current from...
Text Solution
|
An average emf of 25 V is induced in an inductor when the current in i...
Text Solution
|
A coil has a self inductance of 10 mH. What is the maximum magnitude o...
Text Solution
|
An air-cored solenoid has 150 turns and cross-sectional area 2 cm^(2)....
Text Solution
|
What is the self-inductance of an air core solenoid 1 m long, diameter...
Text Solution
|
A coil of wire of a certain radius has 600 turns and a self-inductance...
Text Solution
|
The current is a solenoid of 240 turns, having a length of 12 cm and ...
Text Solution
|
Calculate the mutual inductance between two coils when the currents ch...
Text Solution
|
A carspark coil developes an induced e.m.f. of 40000 V in the secondar...
Text Solution
|
If the current in the primary circuit of a pair of coils changes from ...
Text Solution
|
A conducting wire of 100 turns is wound over and near the centre of a ...
Text Solution
|
A solenoid has 2000 turns wound over a length of 0.3 m. Its cross-sect...
Text Solution
|
Find the mutual inductance between the two coils if a current of 10 am...
Text Solution
|