(a) What is the potential difference (in V) between two points situated 12 cm and 24 cm from a 4.1 C point charge? (Enter the magnitude.) 14500 (b) To what location should the point at 24 cm be moved to increase this potential difference by a factor of two? infinity 16.0 cm from the 4.1 C point charge -16.0 cm from the 4.1 C point charge 0.160 cm from the 4.1 C point charge