According to rheostat by increasing length potential increases and when potential increased then current also increases...but according to ohm,s law current decreases by increasing voltage


closed as unclear what you're asking by Qmechanic Sep 6 '17 at 16:10

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ Your question is unclear. Horrible spelling mistakes need to be done away with. The rheostat simply provides the resistance. The increase in the length of the wire increases the resistance offered by the rheostat. What does that have to do with voltage or current? $\endgroup$ – Wrichik Basu Sep 6 '17 at 15:04
  • 1
    $\begingroup$ Current certainly does NOT decrease when the voltage is increased, according to Ohm's law. Sorry, but your question is totally unclear to me. $\endgroup$ – Dmitry Grigoryev Sep 6 '17 at 15:34

By Ohm's law, the current flowing is directly proportional to the potential difference. Not inversely.


Not the answer you're looking for? Browse other questions tagged or ask your own question.