Part A Find the total electric field at the point A. The field is horizontal, bu

Question

Part A

Find the total electric field at the point A. The field is horizontal, but give the correct sign assuming the positive axis is directed to the right. Express your answer to two significant figures and include the appropriate units.

Part B

Find the total electric field at the point B (using the same sign convention as for A). Express your answer to two significant figures and include the appropriate units.

Part C

Find the total electric field at the point C (using the same sign convention as for A).Express your answer to two significant figures and include the appropriate units.

Part D

Find the total electric field at the point D (using the same sign convention as for A).Express your answer to two significant figures and include the appropriate units.

Explanation / Answer

Here ,

electric field due to a large plate is given as

E = sigma/(2 * epsilon)

part A)

electric field at point A ,

EA = (0.45 - 0.30 + 0.40) *10^-6/(2 * 8.854 *10^-12)

EA = 31060 N/C

the electric field at A is 31060 N/C

B)

electric field at point B ,

EB = (-0.45 - 0.30 + 0.40) *10^-6/(2 * 8.854 *10^-12)

EB = -1.98 *10^4 N/C

the total electric field at the point B is -1.98 *10^4 N/C

C)
electric field at point C

EC = (-0.45 + 0.30 + 0.40) *10^-6/(2 * 8.854 *10^-12)

EC = 1.412 *10^4 N/C

the total electric field at the point B is 1.412 *10^4 N/C

D)

electric field at point D

EC = (-0.45 + 0.30 - 0.40) *10^-6/(2 * 8.854 *10^-12)

EC = - 3.106 *10^4 N/C

the total electric field at the point B is - 3.106 *10^4 N/C

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