Children make toy telephones by sticking each end of a long string through a hole in the bottom of a paper cup and knotting it s
2 answers:
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The pressure exerted is
Explanation:
The pressure exerted by a force on a surface is given by
where
p is the pressure
F is the magnitude of the force
A is the area of the surface
In this problem, we have:
F = 200 N is the force exerted (the weight of the ant)
is the area
Therefore, the pressure exerted is:
Learn more about pressure:
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I am attaching the missing figure
If we assume 100% efficiency, this means that the input power of the transformer must be equal to the output power
We divide output/input
240,000/12,000 = 20
This means that the transformer has a turns ratio of 1:20
<span>ns/np = 20/1 = 20
The voltage is amplified 20 times by the transformer, but this also means that the current decreases by a factor of 20, so the total power remains the same.</span>
If we assume 100% efficiency, this means that the input power of the transformer must be equal to the output power
We divide output/input
240,000/12,000 = 20
This means that the transformer has a turns ratio of 1:20
<span>ns/np = 20/1 = 20
The voltage is amplified 20 times by the transformer, but this also means that the current decreases by a factor of 20, so the total power remains the same.</span>