What happens to the current flowing through a resistance if the source voltage is increased?

What happens to the current flowing through a resistance if the source voltage is increased?

• A. The current decreases
• B. The current remains unchanged
• C. The current increases
• D. The current doubles

Answer: (C)

When the source voltage is increased while the resistance remains constant, the current flowing through that resistance will increase. This relationship is governed by Ohm's law, which 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). The mathematical expression for Ohm’s law is I = V/R. In this scenario, if you increase the voltage while keeping the resistance unchanged, the quotient of voltage and resistance results in a higher current value. Therefore, as voltage increases, the current increases correspondingly. Understanding this principle is crucial in electronics and electrical engineering since it illustrates how voltage changes directly impact current flow in a circuit.

When the source voltage is increased while the resistance remains constant, the current flowing through that resistance will increase. This relationship is governed by Ohm's law, which 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). The mathematical expression for Ohm’s law is I = V/R.

In this scenario, if you increase the voltage while keeping the resistance unchanged, the quotient of voltage and resistance results in a higher current value. Therefore, as voltage increases, the current increases correspondingly.

Understanding this principle is crucial in electronics and electrical engineering since it illustrates how voltage changes directly impact current flow in a circuit.