A coil of resistance R having n turns is connected with a galvanometer of resistance 4R. If the magnetic flux changes from `phi_(1)` to `phi_(2)` in t

Question

A coil of resistance R having n turns is connected with a galvanometer of resistance 4R. If the magnetic flux changes from `phi_(1)` to `phi_(2)` in t

A coil of resistance R having n turns is connected with a galvanometer of resistance 4R. If the magnetic flux changes from `phi_(1)` to `phi_(2)` in time t in the circuit, what will be the value of induced current?

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

Effective resistance `=R+4R=5R`
For n turns the effective change in the magnetic flux `=n(phi_(2)-phi_(1))`
So, the emf induced = `-(n(phi_(2)-phi_(1)))/(t)`
`therefore` Induced current = `-(n(phi_(2)-phi_(1)))/(5Rt)`

4 views Answered 2023-02-05 15:29