Question

An eight-turn coil encloses an elliptical area having major axis of 40.0 cm and a minor axis of 30.0 cm. The coil lies in the plane of the page and has a 6.00-A current flowing clockwise around it. If the coil is in a uniform magnetic field or 2.00 × 10−4 T directed toward the right of the page, what is the magnitude of the torque on the coil? [Hint: The area of an ellipse is A = πab where a and b are, respectively, the semimajor and semiminor axes of the ellipse.]

Answer 1

Area 9 coil, Az łaba rx (40 x 18² x ( 30 x 10-2) 2² = 0.094 m² No. 9 turns, n28 current , i = 6A magnetic field, Ba (2010) torque is given by Tan Bin 58X(2X104) x6 * (0.094) N-am 2 9.024x10²4 M.m