Copper and silver are two materials often used for making audio cables. Silver has a slighly lower resistivity than copper. For a given length of audio cable of a standard resistance, which of the cables (silver or copper cable ) will be made thinner ?

Explanation

To determine which cable (silver or copper) will be made thinner for a given length of audio cable with standard resistance, we can follow these steps:

### Step 1: Understand the relationship between resistivity, resistance, and dimensions
The resistance \( R \) of a conductor is given by the formula:
\[ R = \frac{\rho L}{A} \]
where:
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