Question

bell-work 09/15/2025 how do you think resistance affects the voltage of a circuit?

Explanation:

Step1: Recall Ohm's Law

Ohm's Law is $V = IR$, where $V$ is voltage, $I$ is current, and $R$ is resistance.

Step2: Analyze the relationship

When current $I$ is constant, an increase in resistance $R$ will lead to an increase in voltage $V$ (since $V$ and $R$ are directly - proportional when $I$ is fixed), and a decrease in resistance $R$ will lead to a decrease in voltage $V$. When the power source has a fixed voltage, the resistance affects the current flowing through the circuit. Higher resistance means lower current. According to the voltage - drop formula across a resistor $V_R=IR$, for different resistors in a circuit, the voltage drop across each resistor depends on its resistance value and the current flowing through it.

Answer:

According to Ohm's Law ($V = IR$), when current is constant, resistance and voltage are directly proportional. In a circuit with a fixed - voltage power source, resistance affects the current, and the voltage drop across resistors in the circuit is determined by the resistance value and the current flowing through them.