A metal bar of length L = 4.6 m slides along two horizontal metal rails as shown

Question

A metal bar of length L = 4.6 m slides along two horizontal metal rails as shown in the figure below. A magnetic field of magnitude B = 2.4 T is directed vertically.

(a) If the bar is moving at speed v = 0.50 m/s, what is the emf induced across the ends of the bar?

A metal bar of length L = 4.6 m slides along two horizontal metal rails as shown in the figure below. A magnetic field of magnitude B = 2.4 T is directed vertically. (a) If the bar is moving at speed v = 0.50 m/s, what is the emf induced across the ends of the bar?

Explanation / Answer

EMF induced=L*(B@V)

@ denotes the cross product

so emf=B*L*V*sin theta

theta=90

so mf=5.52V

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