A closely wound solenoid 80 cm long has 4 layers of windings of 500 turns each. The diameter of the solenoid is 1.7 cm. If the current carried is 8.0 A, estimate the magnitude of B inside the solenoid near its centre.

A closely wound solenoid 80 cm long has 4 layers of windings of 500 tu

1.	A closely wound solenoid 80 cm long has 4 layers of windings of 500 turns each. The diameter of the solenoid is 1.7 cm. If the current carried is 8.0 A, estimate the magnitude of B inside the solenoid near its centre.
Answer» Solution :MAGNETIC field INSIDE an extremely long current carrying solenoid is, `B=mu_(0)nI` `thereforeB=mu_(0)((Np)/l)I` (Where p = no. of layers in a solenoid) `thereforeB=((4pixx10^(-7))(400xx5)(8))/((0.8))` `thereforeB=2.5xx10^(-2)T` (Parallel to AXIS of solenoid)

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A closely wound solenoid 80 cm long has 4 layers of windings of 500 turns each. The diameter of the solenoid is 1.7 cm. If the current carried is 8.0 A, estimate the magnitude of B inside the solenoid near its centre.

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