Figure 30-52
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Homework 30.29
In Fig. 30-52,
a metal rod is forced to move with constant velocity V
along two parallel metal rails, connected with a strip of metal at one end.
A magnetic field of magnitude B = 0.350 T points out of the paper.
(a) If the rails are separated by L = 25.0 cm and the speed of the rod is 55.0 cm/s,
what emf is generated? (b) if the rod has a resistance of 18.0 Ω and the rails
and connector have neglible resistance, what is the current in the rod?
(c) At what rate is energy being transfered to thermal energy?