name two factors on which resistance depends?
Answers
Area of cross section and length of the conductor
Explanation:
As area of cross section decreases the resistance increases and vice versa.
As length of the conductor increases the resistance also increases and vice versa.
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Explanation:
The resistance of a conductor depends on:-1. Length 2. Nature of material 3. Area of cross section 4. Temperature resistance does not change with cange in lenght( only length, not for area of cross section)
resistivity of the conducter will not change with an increase in the length as it depends only on the nature of the conducter and temperature. resistanec of the conducter will change as the resistance of a material which opposes the flow of electric current depends on : i) Length of the conductor (l) : R is directly proportional to "l" ii) Area of cross -section (A) : R is inversely proportional to "A" iii) Nature of the material iv) Temperature since everything is the same and only the length is doubled the resistance of the conducter will also be equal to double of its prevous resistance deacrese
temperature:
As the temperature increase value of resistivity increase so resistance increase.(in thecase of simply conductor or meatals).
cross section area:
resistance us inversely proportional to the cross section area so cross section area increase the value of resistance