A100-turn, 3.0-cm-diameter coil is at rest in a horizontal plane. a uniform magnetic field 60%u2218 away from vertical increases from 0.50 t to 2.5t in 0.90s .
what is the induced emf in the coil?

Induced emf in the coil, E = 0.157 volts

Explanation:

It is given that,

Number of turns, N = 100

Diameter of the coil, d = 3 cm = 0.03 m

Radius of the coil, r = 0.015 m

A uniform magnetic field increases from 0.5 T to 2.5 T in 0.9 s.

Due to this change in magnetic field, an emf is induced in the coil which is given by :

E = -0.157 volts

Minus sign shows the direction of induced emf in the coil. Hence, the induced emf in the coil is 0.157 volts.

we need to know the time interval during which the force acts. impulse of force = momentum change

a. are