What is the effect of increased resistance on current flow?

What is the effect of increased resistance on current flow?

• A. Increases the current
• B. Decreases the current
• C. Has no effect
• D. Varies the voltage needed

Answer: (B)

Increased resistance in a circuit leads to a decrease in current flow. This relationship is described by Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R), or I = V/R. When resistance increases while the voltage remains constant, the overall current must decrease to maintain this balance. This means that higher resistance impedes the flow of electric current, resulting in less current passing through the circuit. Understanding this principle is crucial for evaluating electrical systems, as it helps diagnose issues and predict how changes in resistance will affect circuit performance.

Increased resistance in a circuit leads to a decrease in current flow. This relationship is described by Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R), or I = V/R. When resistance increases while the voltage remains constant, the overall current must decrease to maintain this balance. This means that higher resistance impedes the flow of electric current, resulting in less current passing through the circuit. Understanding this principle is crucial for evaluating electrical systems, as it helps diagnose issues and predict how changes in resistance will affect circuit performance.