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Hello students, here two long wires, one is having current 18 ampere and another is having current 6 ampere is given.
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Distance between them and distance from second wire to point p is given.
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Now we need to find magnetic field at the point p.
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Let us consider this as i1 and this as i2.
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Now, from i1, the distance to the point p is considered as b.
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From i2, the distance to the point p is considered as a.
00:32
Now, the magnetic field at point p will be equal to mu naught divided by 2 pi which is common, i1 divided by, from i1 the distance is b plus mu naught i2 divided by 2 pi a.
00:53
Now, taking mu naught by 2 pi common, we have i1 divided by b plus i2 divided by a...