The figure below shows rod of length L 11 ú cm that is orced to move at constant

Question

The figure below shows rod of length L 11 ú cm that is orced to move at constant speed v 2.00 m s along honzontal rals. The rod rals, and connecting strip at the right orm a conducting cop. The rod has resistance rest of the loop has negligible resistance. A current , 140 A through the long straight w re at distance 10.0 mm from the loop sets up? nor uniform magnetic field through the loop. 500 ?; the (a) Find the emf induced in the loop 139154 V b) Find the current induced in the lcop. 2.78e-4 (c) At what rate is thenmal energy generated in the rod? (d) What is the magnitude of the force that must be applied to the rod to make it move at constant speed? (e) At what rate does this force do work on the rod? 2985-8x W

Explanation / Answer

Part C

Thermal energy generated will be given by:

P = (I_induced)^2*R

P = (2.78*10^-4)^2*0.5

P = 3.86*10^-8 W

Part E.

We know that

Power = Force*Velocity

P = 1.93*10^-8*2

P = 3.86*10^-8 W

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