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  • The self inductance of a long solenoid cannot be increased byOption: 1 increasing

The self inductance of a long solenoid cannot be increased by

Option: 1

increasing its area of cross section

 


Option: 2

 

changing the medium with greater permeability

 


Option: 3

Both (a) and (b)

 


Option: 4

increasing the current through it

 


Answers (1)

best_answer

 

 

\begin{array}{l}{\text { If the core is filled with a magnetic material of permeability } \mu,} \\ {\qquad \text { then, } \mathrm{L}=\frac{\mu \mathrm{N}^{2} \mathrm{A}}{l}}\end{array}

From the above equation we can check all the option. So by inccreasing the current, there is no effect on the value of L 

 

 

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Posted by

rishi.raj

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