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Question

Physics Question on Electric Field

Two parallel large thin metal sheets have equal surface charge densities (σ=26.4×10−12cm2)\left(\sigma=26.4\times10^{-12} c m^{2}\right) of opposite signs. The electric field between these sheets is

A

1.5 N/C1.5 \,N/C

B

1.5×10−10N/C1.5 \times 10^{-10} N/C

C

3 N/C3\,N/C

D

3×10−10N/C3 \times 10^{-10} N/C

Answer

3 N/C3\,N/C

Explanation

Solution

Electric field between sheets is E=σ/ε0=26.4×10−128.85×10−12E=\sigma/ \varepsilon_{0} =\frac{26.4\times10^{-12}}{8.85\times10^{-12}} ≈3 N/C\approx3\, N/ C