Physics
Define the term resistance. State it's S.I. unit.
Current Electricity
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Answer
The obstruction offered to the flow of current by the conductor (or wire) is called it's resistance.
The S.I. unit of resistance is Ohm.
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Related Questions
Explain the statement 'the potential difference between two points is 1 volt'.
(a) Name the particles which are responsible for the flow of current in a metallic wire.
(b) Explain the flow of current in a metallic wire on the basis of movement of the particles named by you above in part (a).
(c) What is the cause of resistance offered by the metallic wire in the flow of current through it?
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(b) What is the necessary condition for a conductor to obey the law named above in part (a)?
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