Question

# What is motional emf? State any two factors on which it depends.

Solution

## Motional emf is the emf induced in a conducting rod when it moves in a region of magnetic field. Motional emf is calculated by   $$\mathcal{E} = v Bl$$where $$B$$ is the magnetic field and $$l$$ is the length of the rod and $$v$$ is the velocity of rod perpendicular to the length of the rod.Motional emf depends on 1. The magnitude of length of rod and 2. Velocity of rod and 3. Magnetic field.Physics

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