Physics, asked by TArang8186, 1 year ago

Define electrical resistance and write its si unit discuss how the resistance of a conducting wire depends on its length, cross-sectional area and temperature. 2

Answers

Answered by Anonymous
4

Here is your answer mate: -

*Electrical Resistance is the characteristic property of the conductor on the basis of which it opposes the flow of current through the conductor.

*It's SI unit is Omega also known as (Ohm).

*Resistance of a conductor is directly proportional to length of the conductor. So if length is doubled so resistance also gets doubled.

*Resistance is inversely proportional to area of Cross section of conductor. So if area of Cross section is doubled so resistance gets halved.

*Resistance increase with temperature. So if resistance is more so it will oppose more the flow of current and electrical energy will be transformed into heat energy and as a result temperature of the conductor will increase.

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