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3 years ago

T Object]User: Which of the following does not affect the electrical resistance of a body?

2 answers:

8 0

On page 38 it explains that The opposition to the flow of an electric current through a body is called the electrical resistance of the body. The resistance of a body depends on several factors: l Material composing the body l Length of the body l Cross-sectional area of the body l Temperature of the body.

So the correct answer is D. bodies surrounding the body

exis [7]3 years ago

4 0

Material composing the body, temperature of the body and the length of the body affects the electrical resistance of a body. Bodies directly surrounding the body will not affect the electrical resistance of the body. The answer is letter D.

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2 years ago

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Answer:

$E=88200\ J$

Explanation:

Given:

mass of car, $m=1500\ kg$

distance of skidding after the application of brakes, $d=15\ m$

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So, the energy dissipated during the skidding of car:

Frictional force:

$f=\mu_k.N$

where N = normal reaction by ground on the car

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$f=5880\ N$

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$E=5880\times 15$

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3 years ago

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Sonbull [250]

Answer:

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Explanation:

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2 years ago

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Answer:

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Explanation:

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