You\'ve hung two very large sheets of plastic facing each other with distance d

Question

You've hung two very large sheets of plastic facing each other with distance d between them, as shown in the figure (Figure 1) . By rubbing them with wool and silk, you've managed to give one sheet a uniform surface charge density ?1 =??0 and the other a uniform surface charge density ?2 =+3?0.

Part A

What is the electric field vector at point 1?

In the space provided, enter the numerical factor that multiplies n0 / ?0 in your answer.

Part B

What is the electric field vector at point 2?

In the space provided, enter the numerical factor that multiplies ?0/?0 in your answer.

Part C

What is the electric field vector at point 3?

In the space provided, enter the numerical factor that multiplies ?0 / ?0 in your answer.

Explanation / Answer

1) +n/2E -3n/2E =- n/E

2) -n/2E -3n/2E =- 2n/E

3) -n/2E +3n/2E=n/E

+ indicates field in positive x axis direction and '-' in negative x axis direction

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