mimi120614 mimi120614
  • 25-11-2020
  • Physics
contestada

A 10 V fan with a current of 2 A is turned on for 30 seconds. Calculate the energy transferred in joules,

Respuesta :

Muscardinus Muscardinus
  • 01-12-2020

Answer:

E = 600 J

Explanation:

Given that,

Voltage, V = 10 V

Current, I = 2 A

Time, t = 30 s

We need to find the energy transferred. Energy transferred is calculated as follows :

[tex]E=I^2Rt[/tex]

Ohm's law, V = IR, R = V/I

[tex]E=I^2\times \dfrac{V}{I}\times t\\\\E=IVt\\\\E=2\times 10\times 30\\\\E=600\ J[/tex]

So, 600 J of energy is transferred.

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