Re-establish emf induced among ends of rod at initial value

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A conducting rod is moving during a magnetic field, as in the drawing. The magnetic field strength is 0.65 T, and the speed of the rod is 4.8 m/s. Abruptly, the field strength decreases to 0.48T. To what value must the speed v of the rod be adjusted to re-establish the emf induced among the ends of the rod at its initial value?

Reference no: EM13663419

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