Question

Define resistance state its si si unit how does resistance vary with length and area of cross section of the wire

Answer 1

Hii mate !!

Here's your answer.

Resistance is obstruction in the path of current.

SI unit-: ohm

Resistance is directly proportional to length and inversely proportional to area

Hope it helps you.

Answer 2

The resistance of a conductor is very low whereas insulators have very high resistances. The resistance of a conducting wire is proportional to its length and inversely proportional to its cross-sectional area. .

.. The SI unit of resistance is Ohm.

your answer

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