Electromagnetic Induction and Alternating Current 7 Question 29
####32. Two long parallel horizontal rails, a distance
along the rails without friction (see figure). There is a uniform magnetic field of induction
Find the velocity of the rod and the applied force
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Answer:
Correct Answer: 32.
Solution:
- Total resistance of the circuit as function of distance
from resistance is
Let
Net force on the rod,
but
This net force is equal to