A single-turn square loop of wire measuring 2 meters on all sides sits in a magnetic field of 5 T. The magnetic field is decreased to 1 T over a period of 15 seconds. What is the emf induced in the wire? (Round your answer to the nearest tenth of a volt.

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j