Q 1.24)
Two large, thin metal plates are parallel and close to each other. On their inner faces, the plates have surface charge densities of opposite signs and of magnitude 17.0 × 10–22 C /m2
What is E :
(a) In the outer region of the first plate,
(b) In the outer region of the second plate, and
(c) between the plates?
A and B are two parallel plates close to each other.
Charge density of plate A, σ = 17.0 × 10 – 22 C/m 2
charge density of plate B, σ = – 17.0 × 10 – 22 C/m 2
In regions, I and III, electric field E is zero. This is because no charge is enclosed by a gaussian surface covering both of the plates as the total charge on both of the plates is equal to zero.
In region II, the electric field E:
The electric field between the plates is 1.92 x 10 – 10 N/C.
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