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A wire made of a material with a resistivity $ρ$ has a radius $r$ and is a length $L$, then a certain voltage $V$ is placed across it.

Which of the following are directly proportional to the power being dissipated?

A

$L$

B

$L$ and $ρ$

C

$L, V$, and $ρ$

D

$L, V, ρ$, and $r$

E

None of the above

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