Two large metal parallel plates carry opposite charges of equal magnitude. They

Question

Two large metal parallel plates carry opposite charges of equal magnitude. They are separated by 55.0 mm , and the potential difference between them is 380 V .

Part A

What is the magnitude of the electric field (assumed to be uniform) in the region between the plates?

Express your answer in newtons per coulomb to three significant figures.

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Part B

What is the magnitude of the force this field exerts on a particle with charge +2.60 nC ?

Express your answer in newtons to three significant figures.

Explanation / Answer

here,

potential , V = 380 V

distance b/w the plates, d = 55mm = 0.0055 m

Part a:
Electric field b/w the plates, E = V/d
Electric field b/w the plates, E = 380/0.0055
Electric field b/w the plates, E = 69100 N/C

Part b:
Force, F = charge * Field strength
Force, F = 2.60*10^-6 * 69090.909
Force, F = 0.180 N

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