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Suppose a conducting rod is 86 cm long and slides on a pair of rails at 4.75 m/s.

Randomized Variables v = 4.75 m/s l = 86 cm

What is the strength of the magnetic field in T if a 5 V emf is induced?

Added Sat, 08 Aug '15

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Let the length of the rail be x m

So, Area of the system = x X L (length of the conducting rod)

= 0.86x

Let the magnitude of the magnetic field perpendicular to the area of the system be B

So Flux across the area = B X Area = B X 0.86x

Rate of change of flux = Emf induced in the system

So,

Added Sat, 08 Aug '15

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