The current passing through a choke coil of inductance 4 Henry is decreasing at the rate of `3 amp//sec`. The e.m.f developed across the coil is

Question

The current passing through a choke coil of inductance 4 Henry is decreasing at the rate of `3 amp//sec`. The e.m.f developed across the coil is

The current passing through a choke coil of inductance 4 Henry is decreasing at the rate of `3 amp//sec`. The e.m.f developed across the coil is
A. `-8 V`
B. `-10 V`
C. `-12 V`
D. `-6 V`

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 - C
`e = -L(dI)/(dt) = 4(-3) = -12 V`.

4 views Answered 2023-02-05 15:29