What effect does increasing resistance have on current in a circuit according to Ohm's Law?

What effect does increasing resistance have on current in a circuit according to Ohm's Law?

• A. Current increases proportionally
• B. Current decreases if voltage remains constant
• C. Current stays the same
• D. Current doubles

Answer: (B)

Increasing resistance in a circuit while keeping the voltage constant results in a decrease in current, as described by Ohm's Law. Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. The mathematical relationship is expressed as I = V/R. When you increase the resistance in the circuit, the denominator of the equation becomes larger, which in turn reduces the value of the current, assuming the voltage remains unchanged. This inverse relationship highlights the critical role of resistance in determining current flow. As resistance rises, the opposition to the flow of electric charge increases, thereby leading to a lesser amount of current flowing through the circuit. This fundamental concept is vital for understanding how various components interact in electrical systems.

Increasing resistance in a circuit while keeping the voltage constant results in a decrease in current, as described by Ohm's Law. Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. The mathematical relationship is expressed as I = V/R.

When you increase the resistance in the circuit, the denominator of the equation becomes larger, which in turn reduces the value of the current, assuming the voltage remains unchanged. This inverse relationship highlights the critical role of resistance in determining current flow. As resistance rises, the opposition to the flow of electric charge increases, thereby leading to a lesser amount of current flowing through the circuit. This fundamental concept is vital for understanding how various components interact in electrical systems.