Define resistance and also explain it through ohm law?

Asked by swatipuspapatel | 8th Apr, 2021, 08:02: PM

Expert Answer:

Resistance is the opposition that a substance offers to the flow of electric current.  It is represented by the uppercase letter R.  The standard unit of resistance is the ohm, sometimes written out as a word, and sometimes symbolized by the uppercase Greek letter omega.  When an electric current of one ampere passes through a component across which a potential difference (voltage) of one volt exists, then the resistance of that component is one ohm. 

Answered by Shiwani Sawant | 9th Apr, 2021, 05:32: PM