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10 Nov 2019
The figure below shows a rod of length L = 7.0 cm that is forced tomove at constant speed = 2.00 m/s along horizontal rails. The rod,rails, and connecting strip at the right form a conducting loop.The rod has resistance 0.300 ; the rest of the loop has negligibleresistance. A current i = 110 A through the long straight wire atdistance a = 10.0 mm from the loop sets up a (non-uniform) magneticfield through the loop.
(a) Find the emf induced in the loop.
V
(b) Find the current induced in the loop.
A
(c) At what rate is thermal energy generated in the rod?
W
(d) What is the magnitude of the force that must be applied to therod to make it move at constant speed?
N
(e) At what rate does this force do work on the rod?
W
The figure below shows a rod of length L = 7.0 cm that is forced tomove at constant speed = 2.00 m/s along horizontal rails. The rod,rails, and connecting strip at the right form a conducting loop.The rod has resistance 0.300 ; the rest of the loop has negligibleresistance. A current i = 110 A through the long straight wire atdistance a = 10.0 mm from the loop sets up a (non-uniform) magneticfield through the loop.
(a) Find the emf induced in the loop.
V
(b) Find the current induced in the loop.
A
(c) At what rate is thermal energy generated in the rod?
W
(d) What is the magnitude of the force that must be applied to therod to make it move at constant speed?
N
(e) At what rate does this force do work on the rod?
W
Reid WolffLv2
13 Mar 2019
