A wire loop that encloses an area of 10 cm2 has a resistance

A wire loop that encloses an area of 10 cm^2 has a resistance of 5 Ohms. The loop is placed in a magnetic field of 0.5T with its plane perpendicular to the field. The loop is suddenly removed from the field. How much charge flows past a point in the wire? 10^-3C 10^-4C 10^-1C 10^-2C 0C

Solution

induce emf = change in flux)/(change in time

=> induced emf = BA/time = 0.5*10*10^-4/1   

induced current =   0.5*10*10^-4/5 = 0.0001

charge in one sec = induced current = 0.0001 = 10^-4 C

option B