Chapter 20, Problem 7CQ

Figure CQ20.7 shows a slidewire generator with motional cmf ε₀ when the wire at A slides across the top and bottom rails at constant velocity $\stackrel{\to }{v}$₀. (a) When the wire reaches B so that the area enclosed by the circuit is doubled, determine the ratio of the new cmf to the original cmf, ε/ε₀. (b) If the wire's speed is doubled so that v = 2v₀ determine the ratio ε/ε₀.

Figure CQ20.7