An electric bulb is labeled 20W, 240V. Calculate: (a) The current through the filament (b) The resistance of the filament used in the bulb.

      

An electric bulb is labeled 20W, 240V. Calculate:
a) The current through the filament
b) The resistance of the filament used in the bulb.

  

Answers


Moraa
a) P = VI I = P/V = 20/240 =0.437A
b) From Ohm’s law, V =IR R=V/I =240/0.437 = 575.95?
Moraa orina answered the question on April 10, 2018 at 17:48


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