According to ohm's law, what are the two variables that affect the amount of current in a circuit?

According to Ohm's law, the two variables that affect the amount of current in a circuit are: voltage and resistance. Ohm's law states that the current is directly proportional to the voltage, and inversely proportional to the resistance of an element.

The charge of an ion with 55 protons and 52 electrons is +3. the reason is because protons are positive, and there are three more than the amount of negative electrons.