Question

CALCULATE  THE MAGNETIC FIELD  AT THE CENTRE OF SQUARE WIRE OF SIDE (2)1/2cm  AND CARRYING A CURRENT OF 10A.?

Joshi sir comment

method given by BONEY is correct but formula is not correct

it should be B = 4×{ (μ0I) / 4πR } × [sinθ1+ Sinθ2]

Read 1 Solution.


B = 4×{ (μ0I) / 2πR } × [sinθ1+ Sinθ2 ...........................Where I= Current , R= parralel distance to the point from the wire

= 4×(4π × 10-7×10) / 2π*0.7071) × [sin45 + Sin45]

=159.52 × 10-7 T

= 1.595 × 10-5 T


 

BONEY HAVELIWALA 6 year ago is this solution helpfull: 0 2

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