What does Ohm's Law state about the relationship between current and voltage?

• A. The current is inversely proportional to the voltage
• B. The current is dependent on the resistance only
• C. The current is directly proportional to the voltage
• D. The current is dependent on the temperature of the conductor

Answer: (C)

Ohm's Law establishes that the relationship between current (I) and voltage (V) in an electrical circuit is one of direct proportionality, provided that the resistance (R) remains constant. This means that as the voltage applied across a conductor increases, the current flowing through that conductor also increases, assuming no changes in resistance. Mathematically, Ohm's Law is expressed as V = I * R, indicating that voltage is the product of current and resistance. Thus, if the voltage increases while resistance stays the same, the current must increase accordingly.

This principle is fundamental in electrical engineering and is applied in various contexts, from simple circuits to complex electronic devices, where understanding how voltage and current interact is crucial for effective design and troubleshooting.