MHT CET · Physics · Magnetic Effects of Current
A long solenoid of length \(L\) has a mean diameter \(D\). It has \(n\) layers of winding of \(N\) turns each. If it carries a current \(I\), the magnetic field at its centre will be
- A proportional to \(D\)
- B inversely proportional to \(D\)
- C independent of \(D\)
- D proportional to \(L\)
Answer & Solution
Correct Answer
(C) independent of \(D\)
Step-by-step Solution
Detailed explanation
Magnetic field due to solenoid is independent of diameter \(\left(\because B=\mu_{0} n I\right)\)
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