Which of the following relations represents the correct mathematical form of Ohm’s law?

Correct option is D

Ohm's Law states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points, provided the temperature remains constant. The law is expressed by the equation:

$V=IR$

Where:

• V is the voltage across the conductor (in volts),
• I is the current flowing through the conductor (in amperes),
• R is the resistance of the conductor (in ohms).

This relationship shows that the voltage is the product of the current and the resistance.

Important Key Points:

1. Ohm’s Law is fundamental in electrical circuits and is used to calculate the relationship between voltage, current, and resistance.
2. The law applies to ohmic conductors, where the resistance remains constant under constant temperature.
3. V = IR is the correct mathematical representation, where voltage is directly proportional to current.
4. R = V/I can also be derived from Ohm’s law, showing that resistance is the ratio of voltage to current.
5. Ohm’s law is widely used in analyzing simple circuits and solving for unknown values.
6. It provides a basis for understanding how different components in an electrical circuit affect current flow.