Magnetic Effects Of Current Question 36
Question: The magnetic field B with in the solenoid having n turns per metre length and carrying a current of i ampere is given by [MP PET 1993]
Options:
A) $ \frac{{\mu_{0}}ni}{e} $
B) $ {\mu_{0}}ni $
C) $ 4\pi {\mu_{0}}ni $
D) ni
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Answer:
Correct Answer: B
Solution:
Magnetic field inside the solenoid $ B_{in}={\mu_{0}}ni $