Question

A rectangular coil ABCD
is hung from one side
of a balance as shown in
figure. A 500 g mass is
added to the other arm
to balance the weight
of the coil. A current of
(500
A is passed through the coil and a constant
of 0.4 T acting inward (in xz plane)
magnetic field of 0.4 T acting inward (in
is switched on such that only arm CD of lenot
15 cm lies in the field. The additional mass m must
be added to regain the balance is
(a) 4g (b) 5g (c) 6g (d) 7g
​

Answer 1

Answer:

where is fig. If figure is drawn then we will easily understand the meaning of the question.

hope you'll understand