Recent content by liblenovo

  1. L

    Can Bulb Resistance Change with Different Voltage Sources?

    Generally speaking, the resistance of a bulb vary with temperature. If ignore this feature, I think your answer is right.
  2. L

    What is the current in the wire?

    I check it by another method. Your answer is right. My method is: I=j*S=(sigma*E)*A=(1/ρ)*E*A=1.80679 A Where you get the value of ρ? In Wikipedia, it is 2.82×10^−8