A wire A, bent in the shape of.. | EMF | JEE-MAIN 2020

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JEE MAIN 2020

04-09-2020 S1

Question

A wire A, bent in the shape of an arc of a circle, carrying a current of 2 A and having radius 2 cm and another wire B, also bent in the shape of arc of a circle, carrying a current of 3 A and having radius of 4 cm, are placed as shown in the figure. The ratio of the magnetic fields due to the wires A and B at the common centre O is

Select the correct option:

A

2 : 5

B

6 : 5

C

4 : 6

D

6 : 4

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Solution

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