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Physics
If two coils have self inductance L1 and L2 the coefficient of mutual induction will be:
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Q. If two coils have self inductance $ L_{1} $ and $ L_{2} $ the coefficient of mutual induction will be:
Rajasthan PMT
Rajasthan PMT 2004
Electromagnetic Induction
A
$ M\propto \sqrt{L_{1}L_{2}} $
90%
B
$ M\propto \sqrt{\left( \frac{L_{1}}{L_{2}} \right)} $
4%
C
$ M\propto \sqrt{\left( \frac{L_{2}}{L_{1}} \right)} $
6%
D
none of these
0%
Solution:
The coefficient of mutual induction is $M \propto \sqrt{L_{1} L_{2}}$