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Equal currents i=1 A are flowing through...

Equal currents `i=1` A are flowing through the wires parallel to y-axis located at `x=+1m, x=+2m, x=+4m` and so on...., etc. but in opposite directions as shown in Fig The magnetic field (in tesla) at origin would be

A

`-1.33 xx 10^(-7)hatK`

B

`1.33 xx 10^(-7)hatK`

C

`2.67 xx 10^(7)hatk`

D

`-2.67 xx 10^(7)hatk`

Text Solution

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The correct Answer is:
B
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Knowledge Check

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    B
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    C
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    D
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  • An infinite long straight wire with current I flowing along the positve z-axis is located at coordinates P(-12m, 5m) . Determine the unit vector showing the direction of magnetic field at the origin.

    A
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    B
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    D
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