TS EAMCET · Physics · Electromagnetic Induction
A solenoid of radius \(R\) has \(n\) turns per unit length, then the self-inductance of the solenoid per unit length is
- A \(\mu_0 m \pi R^2\)
- B \(\mu_0 r R^2\)
- C \(\mu_0 n^2 R^2\)
- D \(\mu_0 n^2 \pi R^2\)
Answer & Solution
Correct Answer
(D) \(\mu_0 n^2 \pi R^2\)
Step-by-step Solution
Detailed explanation
Self-induction of solenoid, \(L=\frac{N \phi}{i}\) where, \(\phi=\) magnetic flux, \(N=\) total numbers of tums and \(i=\) current. Here, \(N=n l, n=\) number of turn per unit length and \(l=\) length of solenoid.…
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