Two parallel large thin metal sheets have equal surface densities 26.4x10-12 C/m2 of opposite signs. The electric field between these sheets is-
(i) 1.5N/C
(ii) 1.5 x `10^{-16}` N/C
(iii) 3 x `10^{-10}`N/C
(iii) 3 x `10^{-10}`N/C
(iv) 3N/C
(iv) 3N/C
Explanation:
Two parallel large thin metal sheets have equal surface densities 26.4x10-12 C/m2 of opposite signs. The electric field between these sheets is 3N/C.
Surface Charge density, σ = 26.4 × 10¯12 `\frac{"C"}{"m"^{2}}`
E = `\frac{\sigma}{"2ε。"}`+`\frac{\sigma}{"2ε。"}`
= `\frac{2\sigma}{"2ε。"}`+`\frac{\sigma}{"ε。"}`
= `\frac{2.64\times10^{-12}}{8.85\times10^{-12}}``\frac{"N"}{"C"}`
= 3 `\frac{"N"}{"C"}`
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