Hwksolns1TA - <'ah)N it?r v'vH a c vy!b zJ J x e)l lzf Gtr...

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33.14 Let's start with point a. The magnetic field here due the presence of BOTH the wires will be the VECTOR sum of the magnetic fields produced by them INDIVIDUALLY [That's SUPERPOSITION PRINCIPLE]. Now, Magnetic field due to a current carrying STRAIGHT INFINITE wire is given by [refer Example 33.3 for derivation. Try deriving the same using Ampere's law 1 . It's much easier!]. Using the above formula we get where d here is the distance of the point a from the top wire i.e. 2 cm = .02 m. Similarly, for the lower wire, we get where the term d = 6 cm now is the distance of the point a from the lower wire.
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This note was uploaded on 12/26/2011 for the course PHYSICS 270 taught by Professor Drake during the Fall '08 term at Maryland.

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Hwksolns1TA - <'ah)N it?r v'vH a c vy!b zJ J x e)l lzf Gtr...

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