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Question about Ohm's Law, Power and Energy

• keropoking

  6 May 09, 23:02

  I can't get the correct answer to this

  A half watt resistor has a resistance of 2.2 kilo ohms. What is the maximum safe current it can handle?

  The answer is 0.015A, but I can get it right. Anyone here is able to help me? Thanks

• eagle

  6 May 09, 23:12

  P = I^2R

  I = sqrt (P/R)