1.5 amp. At the centre of it is placed a coil of 100 turns of cross-sectional area 3.14 × 10–4 m2 having its axis parallel to the field produced by the solenoid. When the direction of current in the solenoid is reversed within 0.05 sec, the induced em.f. in the coil is
(a) 0.48 V
(b) 0.048 V
(c) 0.0048 V
(d) 48 V
