According to Ohm's Law, how does current relate to voltage and resistance?

According to Ohm's Law, how does current relate to voltage and resistance?

• A. Current is directly proportional to resistance
• B. Current is directly proportional to applied voltage
• C. Current is inversely proportional to applied voltage
• D. Current is inversely proportional to resistance

Answer: (B)

Ohm's Law states that the relationship between current (I), voltage (V), and resistance (R) in an electrical circuit can be expressed with the equation \( I = \frac{V}{R} \). This means that current is directly proportional to voltage when resistance is held constant. In other words, if the voltage increases while the resistance remains unchanged, the current will also increase proportionately. Thus, the understanding that current is directly proportional to the applied voltage is fundamental to electrical engineering and physics. This principle demonstrates how voltage acts as the driving force that pushes electric charges through a conductor, producing current. By manipulating the voltage in a circuit, one can effectively control the amount of current flowing, which is essential for the functioning of various electrical devices.

Ohm's Law states that the relationship between current (I), voltage (V), and resistance (R) in an electrical circuit can be expressed with the equation ( I = \frac{V}{R} ). This means that current is directly proportional to voltage when resistance is held constant. In other words, if the voltage increases while the resistance remains unchanged, the current will also increase proportionately. Thus, the understanding that current is directly proportional to the applied voltage is fundamental to electrical engineering and physics.

This principle demonstrates how voltage acts as the driving force that pushes electric charges through a conductor, producing current. By manipulating the voltage in a circuit, one can effectively control the amount of current flowing, which is essential for the functioning of various electrical devices.