The conducting rod of length 5.65cm , shown in the figure (Figure 1) makes conta

Question

The conducting rod of length 5.65cm , shown in the figure (Figure 1) makes contact with metal rails ca anddb. The apparatus is in a uniform magnetic field 0.293T, perpendicular to the plane of the figure. The rod is moving with a velocity 34.8m/s .

Part A

Find the magnitude of the emf induced in the rod when it is moving toward the right.

Part C

If the resistance of the circuit abdc is 34.8? , (assumed to be constant), find the current induced in the rod.

Part D

What is the magnetic force experienced by the rod?

Part F

What is the power being produced as heat in the bar?

Explanation / Answer

Here,

emf = (1/2) B L^2 w

Thus,

emf = 0.016849 V or 16.849 mV   [ANSWER]

*****************

Thus,

I = emf /R = 1.893*10^-3 A or 1.893 mA   [ANSWER]

******************

F.

Thus,

P = I^2 R = 3.19*10^-5 W   [ANSWER]

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