Problem 20.80 A motor run by a 8.3-V battery has a 24-turn square coil with side

Question

Problem 20.80

A motor run by a 8.3-V battery has a 24-turn square coil with sides of length 6.0 cm and total resistance 31 . When spinning, the magnetic field felt by the wire in the coil is 0.027 T .

Part A

What is the maximum torque on the motor?

Express your answer to two significant figures and include the appropriate units.

Problem 20.80

A motor run by a 8.3-V battery has a 24-turn square coil with sides of length 6.0 cm and total resistance 31 . When spinning, the magnetic field felt by the wire in the coil is 0.027 T .

Part A

What is the maximum torque on the motor?

Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

I in coil = V/R = 8.3/31 = .2677 A

torque = NIAB = 24 x .2677 x (.06 x .06) x .027

torque = 0.00062449056 N-m

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