Ask Question
30 January, 15:57

How much work is required to move a 1 coulomb charge a distance of 2 meters along an equipotential line or conductor of 12.5 volts

+1
Answers (1)
  1. 30 January, 19:39
    0
    Work done to move a charge is

    (quantity of charge) x (potential difference during the move).

    Notice that the distance doesn't matter ... only the volts of

    potential change along the way.

    If the route is along an equipotential line, there is no potential

    difference, so it doesn't take any work.

    Through a conductor, it also doesn't take any work, if the whole

    conductor is at the same potential.

    That never happens in a real conductor, like a copper wire or a

    cable at normal temperature. There's always some potential

    difference along the conductor, so it takes some work to move it

    through.

    BUT ... strange as it may seem ... the so-called 'superconductors',

    which are exotic materials at ridiculously low temperatures, have

    literally NO resistance. Not just very low, but zero! If you start

    a current flowing in a superconductor material, and then submerge

    it in liquid helium at a few degrees above absolute zero, you can

    disconnect the battery and connect the ends of the superconductor

    together, and as long as you keep it cold, the current continues to

    flow around and around in the superconductor, with no loss, for

    months or longer! It sure sounds weird, but this is how they build

    the super-strong electromagnets in CT and MRI machines. ((I guess

    that's why it costs so much to get a set of 8-by-10 color glossies from

    your CT scan. They don't snap 'em with their smartphone.)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “How much work is required to move a 1 coulomb charge a distance of 2 meters along an equipotential line or conductor of 12.5 volts ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers