Questions
The current carrying wire and the rod AB are in the same plane. The rod moves parallel to the wire with a velocity v. Which one of the following statements is true about induced e.m.f. in the rod?
detailed solution
Correct option is D
Magnetic force acting on each free electron in the rod is given by F→ =(-e) v→×B.→ Since F→is directed from end A to end B , free electrons are accumulated at end B. As a result end A is at positive potential and end B is at negative potential.Talk to our academic expert!
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A conducting rod PQ of length 1 m is moving with uniform speed of 2 ms-1 in a uniform magnetic field 4 T directed into the plane of paper. A capacitor of capacity 10 F is connected as shown. Then,
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