s connected across a 220- VV potential difference (as is used in Europe), how much power does it dissipate

Respuesta :

The power it dissipate is 202W.

What is Power?

The quantity of energy moved or transformed per unit of time is known as power in physics. The watt, or one joule per second, is the unit of power in the International System of Units. Power is also referred to as activity in ancient writings. A scalar quantity is power.

P₂ = 60 W

V' = 220 V

V = 120 V

P = VI

by ohm's law

V =IR

P = V²R

the ratio of power consumption

P'/P = (V'²/R)/(V²/R)

       = V'²/V²

   P' = P(V'²/V²)

       = 60 × (220/120)²

  P' = 202W

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