Question

electric field at any points between two opposite chargesd parallel planes with equal charges density is​

Answer 1

Explanation:

For point P, If intensity is E, & E₂, When the sheets are in opposite directions. So the intensity of E=0

E=E₁-E₂

E=0/280-0/2ε0

E=0

For second case

For point Q,

E=E1+E2

E=0/280 +0/2€0

E=0/εO

For third Case

For point R, If intensity is E, & E₂, When the sheets are again in opposite directions for it's magnitude, So the intensity of E=0

E=E1-E2

E= -0/280+ 0/2ε0

E=0

Hence E due to oppositely charged infinite plates = o/80, At any points,so it must be zero for all outside points.