EMF produced by generator

Question

The maximum EMF produced by a generator can be increased by

a. turning the wire loop faster.

b. reducing the number of turns of wire in the wire loop.

c. doing either of the above. That is, both a and b. will increase the maximum EMF.

d. doing none of the above. That is, neither a. nor b. will increase the maximum EMF

Answer 1

The maximum emf, ε_max produced by a generator is given by, ε_max = ωNAB

where ω = angular frequency

N = number of turns (or coils)

A = Cross-sectional Area

B = magnetic field

This means that the greater the number of coils, the larger the area, and the stronger the field, the greater the induced emf.

With this information, you can easily answer your question!!!