Question
Download Solution PDFWhat will be the charge density on the plate in S.I. units. The electric field on two sides of a large charged plate is shown in the above figure. (ε0 is the permittivity of free space in S.I. units)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The electric field of a charged plate = σ/2ϵ0 (away for positive)
Calculations:
Given:
Enet(LHS) = 14 Vm-1 (→)
Enet(RHS) = 18 Vm-1 (→)
Let the external electric field be E.
Then,
Enet(LHS) = E - σ/2ϵ0
⇒ E - σ/2ϵ0 = 14 --- (i)
Enet(RHS) = E + σ/2ϵ0
⇒ E + σ/2ϵ0 = 18 --- (ii)
Subtracting (i) from (ii) -
⇒ 2σ/2ϵ0 = 4
⇒ σ = 4ϵ0
Last updated on Jun 19, 2025
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