electromagnetic induction

Question

FIGURE 2 shows a coil with diameter 5 cm and resistance 25  places in uniform magnetic field 0.80 T.

the coil is placed perpendicularly with the magnetic field.

FIGURE 2

Then the coil is moved out of the field within 50 ms. Calculate

a) the induced e.m.f

b) the energy formed in the process.

Answer 1

I would suggest to use one of maxwell equations, specificicaΔlly the 3rd maxwell equation, since we know that emf = - d/dt ∫∫ B * da = dB/dt * A = B/Δt * A for the energy, emf is in units of capacitance, then 1/2C^2/C