TS EAMCET · Physics · Magnetic Effects of Current
The magnetic field intensity at the centre of a long solenoid carrying a current of , is found to be . The number of turns per centimeter of the solenoid is
( Use
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
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Detailed explanation
The magnetic field at the centre of a long solenoid is given by in terms of magnetic permeability in free space, B=μ0ni ...(1). And magnetic intensity is given by H=Bμ0 ∴H=ni, [using 1]…
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