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Korolek [52]
3 years ago
14

How are electric fuses rated

Physics
1 answer:
vitfil [10]3 years ago
6 0

Answer:

The fuse rating can be calculated by dividing the power used by the appliance by the voltage going into the appliance.

Explanation:

(AMPS)=P(watts)÷V(Voltage)

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A ball is dropped from rest at the top of a 6.10 m
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Answer:

n = 5 approx

Explanation:

If v be the velocity before the contact with the ground and v₁ be the velocity of bouncing back

\frac{v_1}{v} = e ( coefficient of restitution ) = \frac{1}{\sqrt{10} }

and

\frac{v_1}{v} = \sqrt{\frac{h_1}{6.1} }

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From the two equations we can write that

e = \sqrt{\frac{h_1}{6.1} }

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e^n = \sqrt{\frac{h_1}{6.1} }\times \sqrt{\frac{h_2}{h_1} }\times... \sqrt{\frac{h_n}{h_{n-1} }

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Taking log on both sides

- n / 2 = log .00396

n / 2 = 2.4

n = 5 approx

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