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The magnetic field intensity at the cent...

The magnetic field intensity at the centre of cubical cage of identical wires of length ' a' due to a current I flowing as shown in the figure is

A

`( 2I)/(a)`

B

`(sqrt2 I)/(a)`

C

0

D

`1//2a`

Text Solution

Verified by Experts

The correct Answer is:
C
For symmetrical current distribution, magnetic field at the centre due to all current carrying conductors will get cancelled, Hence `B_("net") = 0`
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