Acircular solenoid of radius r = 2cm passes through a square loop of wire with 1 turn and sides of length ℓ = 5cm. the solenoid is wound with n = 150 turns of over a length 20cm. the solenoid is connected to a resistor and therefore the current in the solenoid is decreasing according to the function isol = i0e −t/τ where i0 = 0.1a and τ = 40s. the system is drawn to the right. the magnetic field in the solenoid points out of the page as drawn. calculate the emf around the square loop (dark square) at t = 0. select one of the following: (a) |emf| = 3.0 × 10−9v (b) |emf| = 1.9 × 10−8v (c) |emf| = 3.5 × 10−8v (d) |emf| = 2.2 × 10−7v (e) |emf| = 3.7 × 10−7v