First slide

Inductance

Question

A coil of 100 turns carries a current of 5 mA and creates a magnetic flux of $10^{- 5} weber.$ The inductance is

Easy

A

0.2 mH
B

2.0 mH
C

0.02 mH
D

None of these

Solution

$ϕ_{T} = Li \Rightarrow L = \frac{10^{- 5}}{5 \times 10^{- 3}} = 2 mH$

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