What typically occurs to the current when resistance decreases in a circuit?

When resistance decreases in a circuit, the current typically increases. This relationship is described by Ohm’s Law, which states that current (I) is equal to voltage (V) divided by resistance (R). The formula is expressed as I = V/R. Assuming that the voltage in the circuit remains constant, a decrease in resistance results in a larger value for current.

For example, if you have a fixed voltage supply and you reduce the resistance, the denominator in the equation becomes smaller, which leads to a higher quotient, thus increasing the current. This principle is fundamental in understanding how electrical circuits operate and is crucial for any electrician to grasp.