Question

A long solenoid having 200 turns per cm carries a current of
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
e.m.f. in the coil is
(a) 0.48 V (b) 0.048 V
(c) 0.0048 V (d) 48 V

Answer 1

Answer:

A long solenoid having 200 turns per centimeter carries a current of 1.5A. At the center of the solenoid is placed a coil of 100 turns of cross-sectional area 3.14×10-4m2 having its axis parallel to the field produced by the solenoid.

Answer 2

Answer:

your answer is in attachment