Question

In a certain time period a coil of wire is rotated from one orientation to another with respect to a uniform 0.38-T magnetic field. The emf induced in the coil is 5.8 V. Other things being equal, what would the induced emf be if the field had a magnitude of 0.55 T?

Answer 1

8.4 V

Step-by-step explanation:

induced emf, e1 = 5.8 V

Magnetic field, B1 = 0.38 T

magnetic field, B2 = 0.55 T

induced emf, e2 = ?

As we know that the induced emf is directly proportional to the magnetic field strength.

When the other parameters remains constant then

`(e_(1))/(e_(2))=(B_(1))/(B_(2))`

`(5.8)/(e_(2))=(0.38)/(0.55)`

e2 = 8.4 V

Thus, the induced emf is 8.4 V.