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Emf across a rod or wire moving perpendicular to a field (Bvl)

This type of question, asked 3 times: 25 Jan 2023, 8 Apr 2023, 11 Apr 2023. All 3 questions below, oldest first.

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  1. Question 1

    25 Jan 2023

    92
    A wire of length 1 m1\text{ }m moving with velocity 8 m/s8\text{ }m/s at right angles to a magnetic field of 2 T2\text{ }T. The magnitude of induced emf, between the ends of wire will be

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  2. Question 2

    8 Apr 2023

    108
    An emf of 0.08 V0.08\text{ }V is induced in a metal rod of length 10 cm10\text{ }cm held normal to a uniform magnetic field of 0.4 T0.4\text{ }T, when moves with a velocity of:

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  3. Question 3

    11 Apr 2023

    117
    A metallic cube of side 15 cm15\text{ }cm moving along y−y - axis at a uniform velocity of 2 ms−12{\text{ }ms}^{- 1}. In a region of uniform magnetic field of magnitude 0.5 T0.5\text{ }T directed along z-axis. In equilibrium the potential difference between the faces of higher and lower potential developed because of the motion through the field will be____ mVmV.