TS EAMCET 6-Aug-2021 Shift 2 Question Paper

The given situation is shown below ∴ The distance covered by the rod at time dt is v dt.
∴ The area covered by the rod A=vdt×l In time dt, time magnetic flux linked with the rod,
dφ‌‌=B⋅A=B⋅(vdt×l)
‌‌=B(v×l)dt
∴‌ emf induced, ‌ε‌‌=‌

dφ

dt

=−B⋅(v×l)
‌‌=B(l×v)
‌‌=Blv‌sin‌φ
‌‌=Bvl‌‌[∵θ=90∘⇒sin‌90∘=1]