Verified Solution • 2025–26 Session moderate

QJEEM22Ph9fc6: JEE Main 2022 Physics - Class 12 JEEM22Ph9fc6 Solution: A metallic conductor of length 1 m rotates in a vertical plane…

A metallic conductor of length 1 m rotates in a vertical plane parallel to east-west direction about one of its end with angular velocity 5 rad s−1. If the horizontal component of earth's magnetic field is 0.2 × 10−4 T, then emf induced between the two ends of the conductor is :

Multiple Choice Options

  • A 5 μV
  • B 50 μV
  • C 5 mV
  • D 50 mv

Step-by-Step Verified Solution

Emf=12Bωl2

=12×0.2×10−4×5×12 V

= 0.5 × 10−4 V

= 50 μV

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