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Question

1 gauss is equal to

A
104T
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B
104T
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C
103T
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D
none of these
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Solution

The correct option is C 104T
The Gauss is defined by the Ampère's force law when it is applied to CGS units. A wire 1 centimetre long, sitting in a flux density equal to one Gauss and carrying a current of 1 abampere experiences a force equal to 1 dyne.

Thus 1G=1dyne(1cm10A)=105N(102m10A)=104NAm=104T

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