First slide

Inductance

Question

A coil of 100 turns carries a current of 5 A and creates a magnetic flux of $10^{- 5} T m^{- 2}$ per turn. The value of its inductance Z will be

Easy

A

0.05 mH
B

0.10 mH
C

0.15 mH
D

0.20 mH

Solution

$Nϕ = Li \Rightarrow 100 \times 10^{- 5} = L \times 5 \Rightarrow L = 0.2 mH$

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