Recent content by clearwaterkid

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    Variance of resistance with significant current flow

    Thank you. I did manage to find some information about real world resistors. The reason that resistors in the real world cannot function in perfect accordance with Ohm's Law is that in any given situation, a range of variables, including outside heat, external distortion, and ambient noise...
  2. C

    Variance of resistance with significant current flow

    I see. So the current causes the resistor to heat? Is this the case always, that current heats up all resistors with time as it conducts a current? I agree it is extremely vague. It's an odd question, however, he never hinted that heat was part of the solution or reasoning. Thanks for your...
  3. C

    Torque on rod with electric field & proton

    Using cross product, I get the following: Torque = 0 e + 1.6*10^-18 n + 0 u (is this correct?)
  4. C

    Variance of resistance with significant current flow

    The value of a real-world resistor ( ) changes with significant time as the resistor conducts a current. Answer choices Never Rarely Sometimes Usually Always Explain why.
  5. C

    Torque on rod with electric field & proton

    Reading ahead. Don't understand components. Question: A uniform electric field is exerting a force of 3.2X10^-18 Nt u on a proton located at the west end of an east/west directed horizontal rod. r(proton)=-0.5 m e. The torque (r X F) exerted on the rod caused by the interaction of this...