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A Conductor of Radius R,length ℓ\ell And Resistivity ρ\rho Has Resistance R 116\frac { 1 } { 16 }

Question 53

Multiple Choice

A conductor of radius r,length ℓ\ell and resistivity ρ\rho has resistance R.What is the new resistance if it is stretched to 4 times its original length?


A) 116\frac { 1 } { 16 } R
B) 14\frac { 1 } { 4 } R
C) R
D) 4R
E) 16R

Correct Answer:

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