To answer this question, you need to understand Ohm's Law. Ohm's Law states that the voltage across a conductor is directly proportional to the current passing through it, and inversely proportional to the resistance of the conductor.
Let's go through each option to understand why it is correct or incorrect:
Option A) V=IR - This option is correct. It represents Ohm's Law, where V is the voltage across the conductor, I is the current passing through the conductor, and R is the resistance of the conductor.
Option B) I=VR - This option is incorrect. It is the rearrangement of the equation in Option A and does not represent Ohm's Law correctly.
Option C) R=VI - This option is incorrect. It is an incorrect rearrangement of the equation in Option A and does not represent Ohm's Law correctly.
Option D) I=R/V - This option is incorrect. It is the inverse of the equation in Option A and does not represent Ohm's Law correctly.
The correct answer is Option A) V=IR. This option is correct because it represents Ohm's Law correctly, stating that the voltage (V) is equal to the product of the current (I) and the resistance (R).