Since You Cannot Afford Expensive Cable to Hook Up Between $\rho$

Since you cannot afford expensive cable to hook up between your loudspeaker and music amplifier,you try some common 14-gauge (diameter = 1.628 mm) copper wire.If the total length of the wire (there and back) used for each speaker to amplifier hookup was 10 m,then calculate the resistance in the wire for one channel.( $\rho$ (Cu) = 1.7 $\times$ 10^-8 $\Omega$ /m)

A) 2.6 $\times$ 10^-2 $\Omega$
B) 2.0 $\times$ 10^-2 $\Omega$
C) 4.1 $\times$ 10^-3 $\Omega$
D) 8.2 $\times$ 10^-2 $\Omega$
E) 1.6 $\times$ 10^-1 $\Omega$

Correct Answer:

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