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Net magnetic fields at the centre of ...

Net magnetic fields at the centre of the circles O due to a current carrying loop as show in figure is `(thetalt 180^(@))`

A

zero

B

perpendicular to paper inwards

C

perpendicular to paper outwards

D

perpendicular to the paper inwards if ` theta lt= 90^@` and perpendicular to paper outwards if `90^@ lt= theta lt= 180^@`

Text Solution

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The correct Answer is:
B
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