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Resistance of bulb

  1. Aug 2, 2008 #1
    Request answer for the below question:

    "An Electric bulb draws 2.4 amphere at 12.0 volts. What is the resistance. What happens to the resistance of the same bulb when it draws current less than that of the given value?"

    does the resistance decrease, increase or remain same? i was marked wrong for writing that it remains same. Please help
  2. jcsd
  3. Aug 3, 2008 #2
    For the second part look up "inrush current"
  4. Aug 3, 2008 #3
    Are you familiar with the equation V = IR, where V is the voltage, I is the current, and R is the resistance? This is one of the most basic and used equations in electrical circuit theory.
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