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Question

Two parallel large thin metal sheets have equal surface charge densities σ=26.4×10-12c/m2 of opposite signs. The electric field between these sheets is


A

1.5N/c

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B

3N/c

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C

1.5×10-10N/c

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D

3×10-10N/c

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Solution

The correct option is A

1.5N/c


Gauss's Law

  1. Gauss's law states that the net flux in a closed surface is directly proportional to the electric charge.
  2. The equation for the net flux can be written as follows:

E=σ2ε0

Here, E is the net flux, σ is the surface charge density, and ε0 is the constant.

E=26.4×10-12c/m22×8.854×10-12c2/Nm2E=3N/c2E=1.5N/c

Hence, the electric field between the sheets is 1.5N/c.

Therefore, option (A) is correct.


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