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Physics
Physics
Problem
A uniform wire of resistance
R
0
R_0
R
0
is stretched without breaking so that its length becomes three times the original length, the volume remaining constant. What is the new resistance of the wire? a)
3
R
0
3R_0
3
R
0
b)
R
0
3
\dfrac{R_0}{3}
3
R
0
c)
9
R
0
9R_0
9
R
0
d)
R
0
R_0
R
0
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