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23 Nov 2019
A conducting bar slides frictionlessly on two parallel horizontalrails 69.0 cm apart. The bar and rails form a closed circuit with aresistance of 0.670 ?, assumed to be constant throughout themotion. The circuit is placed in a uniform vertical magnetic fieldof 0.415 T perpendicular to the circuit's plane. The bar is pulledat a constant speed of 32.0 cm/s along the rails. What is themagnitude of the force required to pull the bar?
What is the rate of Joule heating in the circuit?
A conducting bar slides frictionlessly on two parallel horizontalrails 69.0 cm apart. The bar and rails form a closed circuit with aresistance of 0.670 ?, assumed to be constant throughout themotion. The circuit is placed in a uniform vertical magnetic fieldof 0.415 T perpendicular to the circuit's plane. The bar is pulledat a constant speed of 32.0 cm/s along the rails. What is themagnitude of the force required to pull the bar?
What is the rate of Joule heating in the circuit?
Beverley SmithLv2
4 Mar 2019
