Verified Solution • 2025–26 Session moderate

QJEEM19Ph87bd: JEE Main 2019 Physics - Class 12 JEEM19Ph87bd Solution: A 10 m long horizontal wire extends from North East to South…

A 10 m long horizontal wire extends from North East to South West. It is falling with a speed of 5.0 ms–1, at right angles to the horizontal component of the earth's magnetic field of 0.3 × 10–4 Wb/m2. The value of the induced emf in wire is :

Multiple Choice Options

  • A 0.3 × 10–3 V
  • B 2.5 × 10–3 V
  • C 1.5 × 10–3 V
  • D 1.1 × 10–3 V

Step-by-Step Verified Solution

Induied emf = Bvℓ sin 45o

= 0.3 × 10−4 × 5 × 10 × sin 45o

= 1.1 × 10−3 V

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