Which of the following statement is correct ? A . potential difference is measured by ammeter . B . The unit of potential difference is ampere C . Battery is a source of potential difference in a circuit D . potential difference cause charges to remain stationary​

C.Battery is a source of potential difference in a circuit.

Explanation:

A battery is a source of electrons and positive ions which sets one of it's terminal (cathode) at negative potential and the other (anode) at positive potential. Hence a battery is a source of electricity(electrons) which sets a potential difference across the battery terminals.

omg taking this same test i was stuck on the same question i was too lazy to read the book sadly i cant really give you an answer to this question too complex the answer will be in chapter 5 of the cay