* Conductance is the inverse of resistance. A higher conductance means a lower resistance, allowing more current to flow.

* Resistance is directly proportional to length. This means that if you double the length of a conductor, you double its resistance. Conversely, halving the length halves the resistance.

Therefore, cutting a conductor in half will:

* Double its conductance. This is because the resistance is halved, and conductance is the inverse of resistance.

Important Note: This assumes that the conductor's cross-sectional area remains the same. If the cross-sectional area also changes, the effect on conductance will be more complex.