What is Resistance ? State it's S.I unit .
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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 ohm, sometimes written out as a word, and sometimes symbolized by the uppercase Greek letter omega
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Answer:
•Resistance is the property of material to oppose the flow of electric current passing through it.
•Its SI unit is ohm (Ω).