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A water heater operates at 240 V, and the resistance of its heating element is 12 How much current does it demand , and how much thermal energy will it produce in 30 minutes ?

Respuesta :

AL2006

Current = (volts) / (ohms)

Current = 240/12

Current = 20 Amperes

Power = (volts) • (amps)

Power = (240) • (20)

Power = 4,800 Watts

That's 4,800 Joules/second

Energy = (power) • (time)

30 minutes = 1,800 seconds

Energy = (4,800 J/s) • (1,800 sec)

Energy = 8,640,000 Joules

nutanraj654

Energy = (power) • (time)

30 minutes = 1,800 seconds

Energy = (4,800 J/s) • (1,800 sec)

Energy = 8,640,000 Joules.

What are 3 examples of thermal energy?

1 The warmth from the sun.

2 Baking in an oven.

3 The heat from a heater.

What is thermal energy definition kid?

Heat energy, also called thermal energy, is the energy an object has because of the movement of its molecules, and heat can be transferred from one object to another object. Heat energy on Earth comes from the sun.

Learn more about thermal energy at

https://brainly.com/question/19666326

#SPJ2

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