A rod slides in a 0.400T magnetic field on two rails that are 20 cm apart. An external force of 10mN keeps the rod moving at a constant velocity of 8m/s.

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a) By how much does the magnetic flux through the loop change in one second? (in Wb/s)?

b) What is the induced voltage (in V) around the loop?

c) What is the combined resistance (in Ohm) of the rod and the rails?

d) What is the electrical power (in W) dissipated in the circuit?

e) What is the mechanical power (in W) required to move the rod, i.e. the rate at which the external force does work on it?
 

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