How are step-up transformers used in the transmission of electrical energy

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Answer 1

Answer: Step-up transformers are used at power stations to produce the very high voltages needed to transmit electricity through the National Grid power lines. These high voltages are too dangerous to use in the home, so step-down transformers areused locally to reduce the voltage to safe levels.

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Why is it necessary that the solar concentrators used by solar power plants be able to move throughout the day?

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to track the sun as it moves through out the day

To track the sun as it's moving across the sky. Hope this helps!

Why does cold water have less thermal energy than hot water?

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This is because the water molecules have less kinetic energy.

What role does energy play when an object is not moving?