How will the resistance of a wire change when its length is doubled second its diameter is doubled third is temperature is increased?
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Resistance of a wire is directly proportional to the length of the wire, therefore if we double it's length resistance will increase by 2times..
Resistance is inversely proportional to d diameter of the wire therefore if we double it's diameter the resistance will become d half of it's initial value
Temperature n resistance of a wire r directly linked with each other... hence increase in temp. will result in increase of resistance..
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SELDON
Resistance is inversely proportional to d diameter of the wire therefore if we double it's diameter the resistance will become d half of it's initial value
Temperature n resistance of a wire r directly linked with each other... hence increase in temp. will result in increase of resistance..
BESTS
SELDON
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We know that resistance is directly proportional to length. So, resistance of wire will gets doubled when its length is doubled.
Second, resistance is inversely proportional to area of cross section. So when diameter is doubled then area will also be double and hence resistance becomes half.
Third resistance of a wire depends on the temperature. When temperature is increased then resistance will also increase.
Hope you might understood......
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