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Usimov [2.4K]
3 years ago
15

What is a race car's

Physics
1 answer:
SpyIntel [72]3 years ago
4 0

Answer:

50

Explanation:

500/10 = 50

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A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by a transformer and transmitted thro
aalyn [17]

Answer:

The percentage power lost in the transmission line if the voltage not stepped up is 50%.

Explanation:

Given that,

Current = 60 A

Voltage = 120 V

Resistance = 1.0 ohm

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Using formula of power

P=I\times V

Where,I =current

V = voltage

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P=7200\ W

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P'=I^2\times R

Put the value into the formula

P'=(60)^2\times1

P'=3600\ W

The percentage power loss P''

P''=\dfrac{P'}{P}\times100=\dfrac{3600}{7200}\times100

P''=50\%

Hence, The percentage power lost in the transmission line if the voltage not stepped up is 50%.

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