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A solenoid of length 50cm, having 100 tu...

A solenoid of length `50cm`, having `100` turns carries a current of `2*5A`. Find the magnetic field, (a) in the interior of the solenoid, (b) at one end of the solenoid.
Given `mu_0=4pixx10^-7WbA^-1m^-1`.

A

`3.14 xx 10^(-4)T`

B

`6.28 xx 10^(-4)T`

C

`1.57 xx 10^(-4)T`

D

`9.42 xx 10^(-4)T`

Text Solution

Verified by Experts

The correct Answer is:
A
Here, I = 2.5 A, l = 50 cm = 0.50 m
and `n=(100)/(0.50)=200m^(-1)`
`therefore" "B=(mu_(0)nI)/(2)=(4pi xx 10^(-7)xx200xx2.5)/(2)=3.14xx10^(-4)T`
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