Fill in the blank: A circuit is when there is only one path to and from the power source.

Series.

Explanation:

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

Where;

V represents voltage measured in voltage.

I represents current measured in amperes.

R represents resistance measured in ohms.

A series circuit is when there is only one path to and from the power source. Thus, the amount of current flowing through the circuit is the same while the voltage is given by the summation of each voltage across each component in the electrical circuit.