Given data:-
No of turns of circular loop(N) = 14
Diameter of a circular loop (d) = 1.0
Magnetic filed (B) = 0.5 T
Current flowing through coil (i) = 6 Amps
Angle between the normal to the plane and B = 45 deg
substitute all the values in a above formulae ;
we get ;
T = 0.5*6*14*0.785*sin(45)
T= 32.97* sin(45) ( where sin45 =0.707)
T = 23.313 N-m
Hence Torque exerted by the magnetic field (T) =23.313 N-m
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