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please, i want to be sure of my password and user name can it be posted to email? also, idon't know how to submit questions can the guide lines be posted as well? Thank you.

A rectangular coil, carrying a current of 400pie amperes, lies in the z=0 plane with its corners at the points (a,b,0), (-a,b,0), (-a,-b,0) and (a,-b,0).

(a) find an expression for the magnetic field strength H at a point (x,y,0) within the coil and evaluate it at points (0,0,0) and (2,1.5,0) given a=4' b=3 netres.

A rectangular coil, carrying a current of 400pie amperes, lies in the z=0 plane with its corners at the points (a,b,0), (-a,b,0), (-a,-b,0) and (a,-b,0).

(a) find an expression for the magnetic field strength H at a point (x,y,0) within the coil and evaluate it at points (0,0,0) and (2,1.5,0) given a=4' b=3 netres.

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