A 250 turn rectangular coil of length 2.1 cm and width 1.25cm carries a current of 82mu*A are subjected to a magnetic field of strength 0.85T. Work done for rotating the coil by 180° against the torque is

Question:

A 250 turn rectangular coil of length 2.1 cm and width 1.25cm carries a current of 82muA are subjected to a magnetic field of strength 0.85T. Work done for rotating the coil by 180° against the torque is

Options :

(a)9.1uJ
(b)4.55uJ
(c)2.3uJ
(d)1.15uJ

Answer :

Ans : – (a)9.1uJ

Answer Steps :

Step1 :-

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