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Sonbull [250]
4 years ago
5

Question Part Points Submissions Used The difference in potential between the accelerating plates of a TV set is about 218 V. If

the distance between these plates is 1.29 cm, find the magnitude of the uniform electric field (N/C) in this region. Consider entering your answer using scientific notation.
Physics
1 answer:
ludmilkaskok [199]4 years ago
3 0

Answer:

1.69\cdot 10^4 N/C

Explanation:

The relationship between electric field strength and potential difference is:

E=\frac{V}{d}

where

E is the electric field strength

V is the potential difference

d is the distance between the plates

Here we have

V = 218 V

d = 1.29 cm = 0.0129 m

So, the electric field is

E=\frac{218 V}{0.0129 m}=16900 N/C = 1.69\cdot 10^4 N/C

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Answer:

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3 years ago
Two charges, Q1 and Q2, are separated by 6·cm. The repulsive force between them is 25·N. In each case below, find the force betw
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Explanation:

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F₁₂ = K Q₁ Q₂ / r₁₂²

So, if we make Q1 = Q1/5, the net effect will be to reduce the force in the same factor, i.e. F₁₂ = 25 N / 5 = 5 N

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So, we will have F₁₂ = 9. 25 N = 225 N

c) If we make Q2 = 5Q2, the force would be increased 5 times, but if at the same , we increase the distance 5 times, as the factor is squared, the net factor will be 5/25 = 1/5, so we will have:

F₁₂ = 25 N .1/5 = 5 N

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