I will award brainiest if all questions are answered
the magnetic field in the region between the poles of an electromagnet is uniform at any time, but is increasing at the rate of 0.020 T/s. The area of the conducting loop in the feild is 180 cm^2. What is the magnitude of the induced emf.

what is the role of a commutator in an electric generator
carries eletric current from generator to load
carries emf to to vary sinusoidally
it maintains a constant sign for emf
it maintains a uniform and constant magnetic feild

A 200-turn coil with an average radius of 0.06 m is placed in a uniform magnetic field so that ø = 30 degrees. The strength of the field increases at a rate of 0.450 T/s. What is the magnitude of the resulting emf?

a coil with area a is rotated with constant angular velocity in a uniform magnetic feild with magnetic induction b. if the axis of rotation is perpendicular to the lines of the magnetic feild, which expression equals the induced emf