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PhysicsJEE Main 23 Jan 2026, Shift 1·Q16·MCQ·Easy–moderate

Electromagnetic Induction · Induction laws

A 20 m long uniform copper wire held horizontally is allowed to fall under the gravity (g=10 m/s2g = 10\ \mathrm{m/s^2}) through a uniform horizontal magnetic field of 0.5 Gauss perpendicular to the length of the wire. The induced EMF across the wire when it travels a vertical distance of 200 m is mV.
  1. (1)0.2100.2\sqrt{10}
  2. (2)201020\sqrt{10}
  3. (3)2102\sqrt{10}
  4. (4)20010200\sqrt{10}
We corrected a printing error in the original paper

Source printed “across the wire it travells”.

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