V = IR
Ohm's Law describes the relationship between voltage, current, and resistance in an electrical circuit. It states that the voltage across a conductor is directly proportional to the current flowing through it, provided the temperature remains constant.
The correct representation of Ohm's Law is:
\(V = IR\)
Where:
- \(V\) represents the voltage (measured in volts)
- \(I\) represents the current (measured in amperes)
- \(R\) represents the resistance (measured in ohms)
Option 1, \(I = VR\), is incorrect. It's a rearrangement, but represents the inverse relationship and is not the standard form of Ohm's Law.
Options 2 and 4, \(V = I - R\) and \(V = I + R\), are fundamentally incorrect. They don't represent the proportional relationship between voltage and current that is characteristic of Ohm's Law.
Therefore, only option 3, \(V = IR\), accurately describes Ohm's Law.
Similar Questions
Find the potential difference (in V) across a resistance of 2.5 kΩ through which a 2 mA current flows.
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According to Ohm’s law, if current (I) increases and potential difference (V) remains constant, then:
Fill in the blank with the most appropriate option.
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Important Questions from Ohm’s Law
Find the potential difference (in V) across a resistance of 2.5 kΩ through which a 2 mA current flows.
Three resistors having resistances in the ratio 1 : 2 : 3 are in parallel. The current through the resistors are in the ratio
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According to Ohm’s law, if current (I) increases and potential difference (V) remains constant, then:
