MHT CET · Physics · Magnetic Effects of Current
The magnetic field intensity H at the centre of a long solenoid having n turns per unit length and carrying a current I, when no material is kept in it is ( \(\mu_0=\) permeability of free space)
- A \(\mu_0 \mathrm{nI}\)
- B \(\frac{\mathrm{n}}{\mathrm{I}}\)
- C nI
- D \(\frac{\mu_0}{\mathrm{nI}}\)
Answer & Solution
Correct Answer
(C) nI
Step-by-step Solution
Detailed explanation
\(H = \mathrm{nI}\)
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