Magnetic Effects Of Current Question 85
Question: A long solenoid of length L has a mean diameter D. It has n layers of windings of N turns each. If it carries a current ?i? the magnetic field at its centre will be [MP PMT 2000]
Options:
A) Proportional to D
B) Inversely proportional to D
C) Independent of D
D) Proportional to L
Show Answer
Answer:
Correct Answer: C
Solution:
Magnetic field due to solenoid is independent of diameter (Because $ B={\mu_{0}}ni $ ).
BETA
