Resistance: Ratio of Potential Difference to Current

The question asks to identify the electrical property that represents the ratio of potential difference across a conductor's terminals to the current flowing through it.

Ohm's Law Application

According to Ohm's Law, the potential difference ($V$) across a conductor is directly proportional to the current ($I$) flowing through it, provided the physical conditions like temperature remain constant. The constant of proportionality is called resistance ($R$).

The formula is expressed as:

$V = IR$

Deriving the Ratio

To find the specific ratio mentioned, we rearrange Ohm's Law equation:

$R = \frac{V}{I}$

This equation clearly defines resistance ($R$) as the ratio of potential difference ($V$) to the current ($I$).

Conclusion

Therefore, the ratio of potential difference across the terminals of a conductor to the current flowing through it is known as its resistance.