Home
Class 12
PHYSICS
A coil having n turns and resistance R i...

A coil having `n` turns and resistance R is connected with a galvanometer of resistance 4R. This combination is moved in time `t` seconds from a magnetic field `W_1` weber to `W_2` weber. The induced current in the circuit is

A

`-(W_2+W_1)/(5Rnt)`

B

`-(n(W_2+W_1))/(5Rt)`

C

`-((W_2+W_1))/(5Rnt)`

D

`(n(W_2+W_1))/(Rt)`.

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

A battery of e.m.f. 12V and internal resistance 2Omega is connected in series with a tangent galvanometer of resistance 4Omega . The deflection is 60^@ when the plane of the coil is along the magnetic meridian. To get a deflection of 30^@ , the resistance to be connected in series with the tangent, galvanometer is :

With a resistance R connected in series with a galvanometer of resistance 100 Omega , it acts as a voltmeter of range 0-V. To double the range a resistance of 1000 Omega is to be connected in series with R. Then the value of R is ( Omega )

To send 10% of main current through a moving coil galvanometer of resistance 99 Omega the shunt required is

A current of 0.25 A flows in the main circuit. Now, the resistance R is disconnected and then connected across the 4 Omega resistance. The current in the circuit now is

13 resistors each of resistance R Omega are connected in the circuit as shown in figure . The effective resistance between A and B is