Physics-Motional EMF
NEET Physics Motional EMF Match the Following Question
Type: Match the Following-match the column-Medium-Class 12
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Induced emf formula for a moving conductor | (i) Blv |
| (b) Role of the magnetic field in motional emf | (ii) Resistance of the conductor |
| (c) Effect of speed on induced emf | (iii) Proportional to v |
| (d) Direction of induced current | (iv) Lenz's law |
A
a-i, b-ii, c-iii, d-iv
B
a-ii, b-i, c-iv, d-iii
C
a-iv, b-iii, c-ii, d-i
D
a-iii, b-iv, c-i, d-ii
Correct Answer
Option A
Detailed Explanation
The induced emf for a moving conductor is given by the formula Blv, where B is the magnetic field, l is the length of the conductor, and v is the speed. The speed directly influences the induced emf, making it proportional to v, and the direction of the induced current can be determined using Lenz's law.
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