Electric field due to an infinitely long straight uniformly charged wire
- The space around a charged particle in which another charge experience a force is known as electric field.
- The electric field at any point due to infinitely long straight wire varies inversely with distance from the wire.
- Electric field at P due to charge dq of length dy
- The charge on length dy, dq = λ dy
- This electric field will be along MP.
- Total electric field at P
- Due to symmetry
ΔMPO में, tan θ = y/r ⇒ y = r tan θ तथा dy = r sec2θ dθ
Since In ΔMPO, sec θ = x/r
- This electric field will be along PX
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