What is the mutual inductance of the two coils?

+3 votes

An emf of 79.0 mV is induced in the windings of a coil when the current in a nearby coil is increasing at the rate of1.32 A/s. What is the mutual inductance of the two coils?
 mH

asked Mar 6, 2012 in Physics by awesome ~Expert~ (1,479 points)
    

1 Answer

+4 votes
 
Best answer

 

The relation between emf and mutual inductance is as follows:

which basically means:

Emf of 2 = - Mutual inductance of 1 on 2  *  change in current of 1 divided by time

Since we are given both emf and dI/dt, we can find M through some simple algebraic manipulation.

answered Mar 15, 2012 by Joey33 ~Expert~ (1,216 points)
selected Mar 15, 2012 by awesome



...