One end of a simple rectangular wire-loop current balance is inserted into a solenoid. A force of
3.0×10−3
3.0×10−3
N is found to act on this end when a current of 2.0A is flowing in it. If the length of the conductor forming the end of the the wire-loop is 0.
0.043T
0.26T
0.43T
0.015T
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