To increase the current in a circuit, the can be increased.

The correct answer is voltage.

According to ohm's law,

V = IR, where V is the potential difference between two points(voltage), I is the electricity, R is resistance.

If the resistance in the electrical conductor is kept constant then the current in the circuit can be increased by increasing the voltage.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.