Question

Two parallel large thin metal sheets have equal surface densities 26.4 x 10^-12 C/m² of opposite signs. The electric field between these sheets is ______.

Options

• 1.5 N/C

• 1.5 x 10^-16 N/C

• 3 x 10^-10 N/C

• 3N/C

Answer 1

Two parallel large thin metal sheets have equal surface densities 26.4 x 10^-12 C/m² of opposite signs. The electric field between these sheets is 3N/C.

Explanation:

Surface Charge density, `sigma = 26.4 xx 10^-12  "C"/"m"^2`

E = `sigma/(2epsilon_0) + sigma/(2epsilon_0)`

`= (2sigma)/(2epsilon_0) = sigma/epsilon_0`

`= (26.4 xx 10^-12)/(8.85 xx 10^-12)  "N"/"C"`

`= 3 "N"/"C"`