- #1
Prashasti
- 63
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Homework Statement
Can I derive an equation for magnetic field inside a solenoid using the formula for magnetic field on the axis of a current carrying coil?
Homework Equations
B = μI/2r ( Magnetic field at the centre of a current carrying coil)
The Attempt at a Solution
B = μI/2r
Let the number of turns per unit length of the solenoid be 'n' and its length be 'a'
So,
B = μnaI/2r
Which is definitely not equal to μnI (Calculated using Ampere's Circuital Law)
What's wrong?[/B]