Final answer:
The electric field between two positive charges cannot equal zero along the line joining the two charges.
Step-by-step explanation:
In physics, the electric field between two positive charges can never equal zero along the line joining the two charges, making the statement false. The electric field lines always point away from positive charges and towards negative charges. Since both charges in this scenario are positive, the electric field lines will point away from each charge, resulting in a net non-zero electric field along the line joining the charges.