MHT CET 2022 Physics question
A metal rod of length '' rotates about one of its ends in a plane perpendicular to a magnetic field of function 'B'. If the e.m.f. induced between the ends of the rod is'e', then the number of revolutions made by the rod per second is
Answer: (B)
Solution
For a rod of length rotating about one end with angular speed in a perpendicular field , the induced emf is . With revolutions per second, , so $e =
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account