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A long solenoid of 50 cm length having 1...

A long solenoid of 50 cm length having 100 turns carries a current of 2.5A. The magnetic field at centre of solenoid is:

A

`3.14 xx 10^(-4)` T

B

`6.28 xx 10^(-5)` T

C

`3.14 xx 10^(-5)` T

D

`6.28 xx 10^(-4)` T

Text Solution

Verified by Experts

The correct Answer is:
D
`B = mu_(0) (N)/(l)I`
`= 4 pi xx 10^(-7) xx (100)/(0.5) xx 2.5`
`= 6.28 xx 10^(-4)`T
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