Unformatted text preview: Farms * ELECTRQAMGNENCWHLWW " HUM * Famdm-smdianslrlaws [33'] © all fprce causes a conducting bar to slide at speed, v, on twe ﬁxed, fric-
tidnless canducting rails within a unifc-rm magnetic ﬁeld of strength 5‘. Which of the fdllpwing changes wuuld result in the largest increase in
voltage acrpss resistor, R? a. doubling the circuit resistance
b. quartering the circuit resistance
c. rncwing the bar at one quarter the speed :1. tripling the magnetic ﬁeld strength ...
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- Spring '11