Your very first statement is wrong. A volt is a unit of electric potential, not current.
Your last question is answered if you write "one" in the blank space. One Volt is one Joule per Coulomb of charge.
Will you check my answers please?
A volt is a unit of current and an amprere is a unit of current.
It is common to call electric potential difference- voltage
A current of 1 ampere is a flow of charge at the rate of 1 coulomb per second.
When a charge of 15 C flows through any area in a circuit each second, the current is 15 A.
One volt is the potential difference between two points if 1 joule of energy is needed to move _________ coulomb of charge between the two points? (This question I don't understand)
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