A magnet is brought towards a coil (i) speedily (ii) slowly then the induced e.m.f.//induced charge will be respectively

Question

A magnet is brought towards a coil (i) speedily (ii) slowly then the induced e.m.f.//induced charge will be respectively

A magnet is brought towards a coil (i) speedily (ii) slowly then the induced e.m.f.//induced charge will be respectively
A. more in first case/more in first case
B. more in first case/equal in both case
C. less in first case/more in second case
D. less in first case/equal in both case

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
The magnitude of induced emf is directly proportional to the rate of change os magnetic flux. Also, induced charge is `dq=-(dphi)/(R)`, which is independent of time.

4 views Answered 2023-02-05 15:29