A current of 12.5 mA is maintained in a single circular loop with a circumference of 2.55 m. A magnetic field of 0.750 T is directed parallel to the plane of the loop. What is the magnitude of the torque exerted by the magnetic field on the loop

Torque Nm

Explanation:

Torque can be calculated by using below given relation

---------- Equation (1)

Where T is the torque in Nm

B is the magnetic field in Tesla

I is the current in Ampere

and A is the area in square meter

Since the current is flowing in circular loop, its area will be equal to

Circumference

Substituting the value of r in the formula of area we get -

Substituting all the values in equation 1

c) power lifting, will be your answer.

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