Reference no: EM13973441
1) A conducting rod AB of length d = 0.80 m and mass 0.10 kg makes contact with the metal rails AD and BC as shown in the diagram. The apparatus is in a uniform magnetic field of flux density 340 mWb/m2 (1 Wb = 1 Tm2), perpendicular to the plane of the diagram. At the moment shown, distance AD is 2.30 m. Find the magnitude of the induced emf in the rod if it is moving to the right with a velocity of 2.60 m/s.
2) Answer the following questions with regard to the diagram above. If the first is T and the rest F, enter TFFFF.
A) The agent moving the rod to the right is doing negative work on the rod
B) The magnetic field due to the INDUCED current points within the loop ABCD out of the plane of the paper.
C) In the absence of friction between rod and rail, the rod will continue to move towards the right indefinitely even if no external force is applied to keep it in motion.
D) The induced current flows clockwise.
E) As the rod AB moves to the right, the magnitude of the flux through the surface ABCD increases.
3) In the problem above, the magnetic field was normal, i.e. it made an angle of 90 degrees with the plane of the loop ABCD. Now suppose the magnetic field makes an angle of 30o with the plane of the loop ABCD. Find the induced emf. (Assume the same flux density and velocity given before.)
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