Two point charges +9 µC and −4 µC are separated by 12 cm
PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
Two point charges +9 µC and −4 µC are separated by 12 cm. Find the distance from the +9 µC charge along the line joining them at which the electric potential becomes zero.
(a) 9.6cm
(b) 8.3cm
(c) 7.2cm
(d) 3.7cm