NEET Physics Motional EMF Match the Following Question
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Induced emf in a closed circuit | (i) Opposes the change in magnetic flux |
| (b) Motional emf in an open circuit | (ii) Related to the Lorentz force |
| (c) Effect of magnetic field on a moving conductor | (iii) Depends on the velocity of the conductor |
| (d) Induced emf due to a rotating wheel | (iv) Is calculated using ω and area |
a-i, b-ii, c-iii, d-iv
a-ii, b-i, c-iv, d-iii
a-iii, b-iv, c-i, d-ii
a-iv, b-iii, c-ii, d-i
Correct Answer
Detailed Explanation
In a closed circuit, induced emf opposes the change in magnetic flux as per Lenz's law. The motional emf in an open circuit relates to the Lorentz force acting on moving charges, while the effect of a magnetic field on a moving conductor depends on its velocity. The induced emf due to a rotating wheel is calculated using the angular velocity (ω) and the area of the wheel's spokes.
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