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Physics
Problem
A cylindrical nichrome wire has resistance
R
0
R_0
R
0
. Its length is then tripled while its radius is doubled. What is the new resistance of the wire? a)
1
4
R
0
\dfrac{1}{4}R_0
4
1
R
0
b)
4
3
R
0
\dfrac{4}{3}R_0
3
4
R
0
c)
3
4
R
0
\dfrac{3}{4}R_0
4
3
R
0
d)
3
2
R
0
\dfrac{3}{2}R_0
2
3
R
0
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