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A wire in the form of a square of side '...

A wire in the form of a square of side `'2m'` carries a current `2A`. Then the magentic induction at the centre of the square wire is `(` magnetic permeability of free space `=mu_(0))`

A

`(mu_0)/(2pi)`

B

`(mu_0 sqrt2)/(pi) `

C

`(2 sqrt2 mu_0)/(pi)`

D

`(mu_0 )/(sqrt2pi)`

Text Solution

Verified by Experts

The correct Answer is:
C
`B = 8 sqrt2 (mu_0 i)/(4pia)`
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NARAYNA-MOVING CHARGES AND MAGNETISM-EXERCISE - 1(C.W) (AMPERE.S CIRCUITAL LAW BIOT-SAVART LAW AND ITS APPLICATIONS)
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