Question

12. A rectangular loop of wire carrying a 4.0-A current is placed in a magnetic field of 0.60 1. The magnitude of the torque acting on this wire when the plane of the loop makes a 30° angle with the field is measured to be 1.1 N.m. What is the area of this loop? A) 0.20 m2 B) 0.40 m2 C) 0.26 m2 D) 0.80 m2 E) 0.53 m2

Answer 1

Solution: Given that Current Corying bya (1) 40 A Redtargalar loop of wire agnetic fdld (B) O.60T 60 30 torquu auting Nm on wire = ue know that torque () UB sin 60 IAXB Sin 60 4.D x Ax o.6 Sin 60 ATeo(A) 0.53 m x(o-6) sinbo auo of the loop the re fore th O.53 m Option ()s Corret