question_answer

A coil of circular cross-section having 1000 turns and\[4\,c{{m}^{2}}\] face area is placed with its axis parallel to a magnetic field which decreases by\[{{10}^{-2}}\,Wb\,\,{{m}^{-2}}\]  in 0.01 s. The e.m.f. induced in the coil is:

A) 400mV

B) 200mV

C) 4mV

D) 0.4mV