Question

Magnitude of the induced e.m.f. produced between the ends of a conductor of length `("‘"L"’")/2` moving with a uniform velocity ‘v’ at right angles to a uniform magnetic field of intensity ‘2B’ will be ______.

विकल्प

• `(BLv)/4`

• `(BLv)/2`

• BLv

• 2BLv

Answer 1

Magnitude of the induced e.m.f. produced between the ends of a conductor of length `("‘"L"’")/2` moving with a uniform velocity ‘v’ at right angles to a uniform magnetic field of intensity ‘2B’ will be BLv.

Explanation:

For maximum induced e.m.f. (e) = Blv

But e = `L/2` and field intensity (B) = 2B

∴ e = `2B(L/2)v` = BLv