A srot soleniod of radius a, number of turns per unit length `n_(2)`, and length L is kept coaxially inside a very long solenoid of radius b, number o
A srot soleniod of radius a, number of turns per unit length `n_(2)`, and length L is kept coaxially inside a very long solenoid of radius b, number of turns per unit length `n_(2)`. What is the mutual inductance of the system?
A. `mu_(0)pib^(2)n_(1)n_(2)L`
B. `mu_(0)pia^(2)n_(1)n_(2)L^(2)`
C. `mu_(0)pia^(2)n_(1)n_(2)L`
D. `mu_(0)pib^(2)n_(1)n_(2)L^(2)`
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Correct Answer - C
The mutual inductance of the system is
`M=mu_(0)pia^(2)n_(1)n_(2)L`
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