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A closely wound solenoid 80 cm long has ...

A closely wound solenoid 80 cm long has 5 layes of windings of 400 turns each. The diameter of the solenoid is `1.8` cm. if the current carried is `8.0A`, estimate the magnitude of B inside the solenoid near its centre.

Text Solution

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`B=(mu_(0)*NI)/(l)=(4pixx10^(-7)xx400xx8xx5)/(80xx10^(-2))`
`=8 pixx10^(-3)T`
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