Question

③ Two identical colis carry equal currents and have a common centre, but their planes creat oight angles to each other. what Ps the magnitude of the resultant magnetic field at the centre if the field due to one coil alone is B ?
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Answer 1

Answer:

Solution

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Correct option is C)

The magnetic field due to each coil is equal in magnitude and perpendicular to each other

Let magnetic field due to one of them be B

Then the resultant magnetic field due to 2 coil =

B

2

+B

2

=

2

B

The ratio of the magnitude of the resultant magnetic field at the centre and the field due to one coil =

2

B:B=

2

:1