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MHT CET20249 May 2024Morning ShiftPhysicsElectromagnetic InductionActual

A metal rod of length ' l ' rotates about one of its ends in a plane perpendicular to a magnetic field of induction ' 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

Options

  1. Ae B ^2 l
  2. Be B l^2
  3. CB ^2 e l
  4. Dl^2 eB

Correct answer

B. e B l^2

Step-by-step solution

A conducting rod of length ' l ' whose one end is fixed, is rotated about the axis passing through its fixed end and perpendicular to its length with constant angular velocity . aligned & e = B l^2 n n & = e B l^2 aligned

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