Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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Two Large Metal Sheets Carry 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. - Physics

Short Note

Two large metal sheets carry 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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At point P, 
Current, i = 0
∴ Magnetic field B = 0
At point Q,
Applying Ampere's law, we get

`int B .dl = mu _0i`

`⇒ B .dl = mu _0 kdl`

`⇒ B= mu _0k`

At point R,
Current, i = 0
∴ B = 0

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HC Verma Class 11, Class 12 Concepts of Physics Vol. 2
Chapter 13 Magnetic Field due to a Current
Q 52 | Page 252
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