Answer:
B = 1.823 T.
Explanation:
Given,
Number of turns,N = 170 turn
Side of square loop,L = 22 cm
Maximum torque, τ = 295 N.m
Current on the loop, I = 20 A
Magnetic strength = ?
Torque = N BIA
300 = 170 x B x 20 x 0.22²
300 = 164.56 B
B = 1.823 T.
Hence, the magnetic field strength is equal to B = 1.823 T.