What is the self inductance of a coil in which an induced emf of 2V is set up, when the current is changing at the rate of ` 4 A s ^( - 1 ) `

Question

What is the self inductance of a coil in which an induced emf of 2V is set up, when the current is changing at the rate of ` 4 A s ^( - 1 ) `

What is the self inductance of a coil in which an induced emf of 2V is set up, when the current is changing at the rate of ` 4 A s ^( - 1 ) `
A. 0.5 mH
B. 0.05 H
C. 2 H
D. 0.5 H

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 - D
Induced emf ` e = ( Ldi) /( dt )`, hence ` e = 2V, (di )/( dt ) = 4 As ^( -1 ) `
` rArr 2 = L xx 4 `
` L = ( 2 )/( 4 ) = 0. 5 H `

4 views Answered 2023-02-05 15:29