SSE JE Electrical Engineering 28 Oct 2020 Shift 1 Papers

Question : 181 of 200

Marks: +1, -0

A conductor of length 0.5 m moves in a uniform magnetic field of density 1.1 T at certain velocity. Find the velocity if the induced voltage in the conductor is 16.5 V and the direction of motion is perpendicular to the field.

30 m/s
60 m/s
40 m/s
50 m/s

Validate

Solution:

Magnetic flux density (B) = 1.1 T
Length

(l)

= 0.5 m
Emf induced is, E = 16.5 V

⇒ 16.5 = 1.1 × 0.5 × \v × \sin 90°

⇒ \v= 30 \m\/\s

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