Physics-Motional EMF
NEET Physics Motional EMF Match the Following Question
Type: Match the Following-match the column-Hard-Class 12
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Induced emf across a length dr of the rod | (i) 0.4 G |
| (b) Speed of rotation of the wheel | (ii) 120 rev/min |
| (c) Magnetic field strength at the place | (iii) ε = B v l |
| (d) Length of the spokes of the wheel | (iv) 0.5 m |
A
a-iii, b-ii, c-i, d-iv
B
a-ii, b-i, c-iv, d-iii
C
a-i, b-iv, c-ii, d-iii
D
a-iv, b-iii, c-ii, d-i
Correct Answer
Option A
Detailed Explanation
The induced emf across a length dr of the rod is represented by ε = B v l (pair a-iii). The speed of rotation of the wheel is mentioned as 120 rev/min (pair b-ii). The magnetic field strength at the place is given as 0.4 G (pair c-i). The length of the spokes of the wheel is 0.5 m (pair d-iv).
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