In a uniform magnetic field, there is a coil with an area S = 50 cm2. The perpendicular to the plane of the loop

In a uniform magnetic field, there is a coil with an area S = 50 cm2. The perpendicular to the plane of the loop makes an angle α = 60 ° with the direction of the magnetic field. The induction of the magnetic field is B = 0.2 T. What is the average value of the electromotive force of induction arising in a loop when the field is turned off during delta t = 0.02 s?

Let’s write the formula for solving the problem:
Ф = B * S * cos α;
Let’s write down the formula for finding the electromotive force:
EMF = – delta (F) / delta (t);
Let’s substitute in the first formula and solve:
Ф = 0.2 * 0.005 * 0.5;
Ф = 0.0005 Wb;
Let’s substitute in the second formula and solve:
EMF = 0.0005 / 0.02
EMF = 0.025 V;
Answer: EMF = 0.025 V.