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Two large metal sheets carry surface cur...

Two large metal sheets carry surface currents as shown in figure . The current through a strip of width dl is Kdl where K is a constant . Find the magnetic field at the points P,Q and R. `

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The correct Answer is:
A, D
`E_(P)=E_(1)-E_(2)=0`
`E_(R)=E_(1)-E_(2)=0`
`E_(Q)=E_(1)+E_(2)=1/2mu_(0)k+1/2mu_(0)k`
`E_(Q)=mu_(0)k` towards right.
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RESONANCE-ELECTRODYNAMICS-Exercise-1 PART-1
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