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A solenoid 50 cm long has 4 layers of wi...

A solenoid 50 cm long has 4 layers of windings of 350 turns each. If the current carried is 6A. Find the magnetic field at the centre of the solenoid

Text Solution

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Here length `= 50 cm = 0.5 cm`
`i = 6 A`
Number of turns per unit length `= n = (4 xx 350)/(0.5) = 2800 m^(-1)`
Magnetic field at the centre `= mu_(0) ni`
`= 4 pi xx 10^(-7) xx 2800 xx 6`
`= 2.11 xx 10^(-2) T`
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