Q.
An air core solenoid has 1000 turns and is one metre long. Its cross-sectional area is 10 cm2. Its self inductance is
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a
0.1256 mH
b
12.56 mH
c
1.256 mH
d
125.6 mH
answer is C.
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Detailed Solution
L=μ0N2Al=4π×10−7×(1000)2×10×10−41=1.256 mH
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