Which of the following is the correct statement of Ohm's Law?
The potential difference across the ends of a conductor is directly proportional to the current flowing through it.
Ohm's Law describes the relationship between voltage, current, and resistance in an electrical circuit. The correct statement is option 2:
Option 2: The potential difference across the ends of a conductor is directly proportional to the current flowing through it.
This can be mathematically expressed as:
\(V \propto I\)
Where:
- \(V\): Potential difference (voltage) in volts (V)
- \(I\): Current in amperes (A)
Introducing a constant of proportionality (resistance, R), we get the familiar equation:
\(V = IR\)
Let's examine why the other options are incorrect:
- Option 1: This statement describes an inverse relationship, which is incorrect according to Ohm's Law.
- Option 3: This statement is a specific example, not the general law. While it might be true for a particular conductor, it doesn't define Ohm's Law.
- Option 4: This statement is incorrect. Current is inversely proportional to resistance (higher resistance leads to lower current, assuming constant voltage).
Therefore, only option 2 accurately represents Ohm's Law.
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