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A long straight wire carries a current as shown below:

Created for Albert.io. Copyright 2016. All rights reserved.

Calculate the magnitude of the magnetic field at Point X if the point is $2\ cm$ from the wire.

A

$3\times { 10 }^{ -7 } \text { } T$

B

$1.5\times { 10 }^{ -5 } \text { } T$

C

$3\times { 10 }^{ -5 } \text { } T$

D

$7.5\times { 10 }^{ -4 } \text { } T$

E

$1.5\times { 10 }^{ -3} \text { } T$

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