6
Question
"The resistance of any conductor is directly proportional to length and inversely proportional to area of cross-section of the substance" from this is concluded that ____________.
P: Value of resistance increases with increase in the length of conductor.
Q: Value of resistance decreases with increases in the length of conductor.
R: Value of resistance decreases with increase in the area of cross-section.
S: Value of resistance decreases with decrease in area of cross-section.
"The resistance of any conductor is directly proportional to length and inversely proportional to area of cross-section of the substance" from this is concluded that ____________.
P: Value of resistance increases with increase in the length of conductor.
Q: Value of resistance decreases with increases in the length of conductor.
R: Value of resistance decreases with increase in the area of cross-section.
S: Value of resistance decreases with decrease in area of cross-section.
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Solution
The correct option is C Statements P and R are true
As value of resistance(R) is directly proportional to length of resistance, so by increasing the length of resistance the value of resistance increases.Statement P is correctAs value of resistance is inversely proportional to area so by increasing the area the value of resistance decreases.So statement R is also correct.Option c is correct answer based on above conclusions.
As value of resistance(R) is directly proportional to length of resistance, so by increasing the length of resistance the value of resistance increases.
Statement P is correct
As value of resistance is inversely proportional to area so by increasing the area the value of resistance decreases.
So statement R is also correct.
Option c is correct answer based on above conclusions.
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