A solid metal cube of edge length 2   cm is moving in the positive y -direction, at a constant speed of…

A solid metal cube of edge length 2 cm is moving in the positive y-direction, at a constant speed of 6 m s-1. There is a uniform magnetic field of 0.1 T in the positive z-direction. The potential difference between the two faces of the cube, perpendicular to the x-axis, is
  1. 12 mV
  2. 1 mV
  3. 2 mV
  4. 6 mV

Solution

emf developed is given by, e=Bvl

∴e=0.12×10-2×6⇒e=12×10-3=12 mV

Asked in: JEE Main 2019 (10 Jan Shift 1)

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