loreliperches loreliperches
  • 23-04-2020
  • Physics
contestada

if a current flowing through a lightbulb is 0.75 ampere and the voltage differences across the lightbulb is 120 volts how much resistance does the lightbulb have

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kth03
kth03 kth03
  • 23-04-2020
We have the equation I = V/R ( according to ohm’s law
==> R = V / I
==> R = 120/0.75
==> R = 160 ohms
*I is current ( unit : ampere)
*V is voltage different and R is resistance
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