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A current of 10 A is folowing in a long ...

A current of 10 A is folowing in a long stright wirre. What is the magnetic incucation produced at a distance of `0.2` m ?

A

`2xx10^(-5)Wb//m^(2)`

B

`10^(-5) Wb//m^(2)`

C

`3xx10^(-5) Wb//m^(2)`

D

`4xx10^(-5)Wb//m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`B =(mu_(0))/(4pi )((2I)/(xx))=10^(-7)xx(2xx10)/(0.2) =10^(-5)Wb//m^(2)`
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