The current passing through a choke coil...

The current passing through a choke coil of `5` hery is decreasing at the rate of `2 ampere//sec`. The e.mf. Devlopeing across the coil is

`10 V`

`-10 V`

`2.5 V`

`-2.5 V`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

ELECTRO MAGNETIC INDUCTION
ERRORLESS |Exercise OT|3 Videos
ELECTRO MAGNETIC INDUCTION
ERRORLESS |Exercise Motional EMI|1 Videos
CURRENT ELECTRICITY
ERRORLESS |Exercise Self Evaluation Test -19|23 Videos
ELECTRON, PHOTON, PHOTOELECTRIC EFFECT AND X-RAYS
ERRORLESS |Exercise Self Evaluation Test|3 Videos

Similar Questions

Explore conceptually related problems

The current passing through a choke coil of 5 henry is decreasing at the rate of 2 ampere//sec . The e.m.f. developing across the coil is

The current passing through a choke coil of inductance 4 Henry is decreasing at the rate of 3 amp//sec . The e.m.f developed across the coil is

A current through a choke coil of self inductance 2H decreases at the rate of 0.5A//s . The e.m.f. developed across the coil is

In a coil, L=5H , current changes at the rate of 2 ampere per second. The induced

The current in a coil of inductance 5H decreases at the rate of 2A//a . The induced e.m.f. is

The flux linked with a coil is 0.8 Wb when a 2 A current is flowing through it. If this current begins to increases at the rate of 400 A//s , the induced emf in the coil will be

When the current in a certain inductor coil is 5.0 A and is increasing at the rate of 10.0 A//s ,the magnitude of potential difference across the coil is 140 V .When the current is 5.0 A and decreasing at the rate of 10.0 A//s ,the potential difference is 60 V .The self inductance of the coil is :

ERRORLESS -ELECTRO MAGNETIC INDUCTION-SET

The current passing through a choke coil of 5 hery is decreasing at th...
Text Solution
|
The figure shows four wire loops, with edge length of either L or 2L. ...
Text Solution
|
A circular coil and a bar magnet placed nearby are made to move in the...
Text Solution
|
A square coil ABCD lying in x-y plane with its centre at origin. A lon...
Text Solution
|
A short magnet is allowed to fall from rest along the axis of a horizo...
Text Solution
|
The horizontal component of the earth's magnetic field at a place is 3...
Text Solution
|
A copper disc of radius 0.1 m rotates about its centre with 10 revolut...
Text Solution
|
A coil of Cu wire (radius r, self-inductance L) is bent in two concen...
Text Solution
|
In which of the following circuits is the current maximum just after t...
Text Solution
|
A small coil is introduced between the poles of an electromagnet so th...
Text Solution
|
Two circular coils A and B are facing each other as shown in figure. T...
Text Solution
|
A conductuing loop having a capacitor is moving outward from the magne...
Text Solution
|
A straight wire of length L is bent into a semicircle. It is moved in ...
Text Solution
|
If in a coil rate of change of area is (5meter^(2))/(milli second)and ...
Text Solution
|
In series with 20 ohm resitor a 5 henry inductor is placed. To the com...
Text Solution
|
Two circular coils P & Q are coaxially & carry currents I1 and I2 resp...
Text Solution
|
The phase difference between the flux linkage and the induced e.m.f. i...
Text Solution
|
A pair of parallel conducting rails lie at right angle to a uniform ma...
Text Solution
|
The magnetic field in the cylindrical region shown in figure increase ...
Text Solution
|
An aircraft with a wingspan of 40 m flies a speed of 1080 km hr(1) in ...
Text Solution
|
A hundred turns of insulated copper wire are wrapped around an iron cy...
Text Solution
|