What happens to the current when the voltage across a resistor increases according to Ohm's Law?

Prepare for the NCEA Level 3 Electricity Exam with flashcards and multiple choice questions. Each question comes with hints and explanations. Get ready for your test!

Multiple Choice

What happens to the current when the voltage across a resistor increases according to Ohm's Law?

Explanation:
According to Ohm's Law, the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit is expressed by the formula V = I × R. When the voltage across a resistor increases while the resistance remains constant, the current must also increase in order to satisfy this equation. This is due to the direct proportionality between voltage and current in the context of a resistor. If the resistance is not changing, an increase in voltage leads to an increase in current. This principle is fundamental in understanding how electrical circuits operate, particularly in predicting how adjustments in voltage will affect current flow.

According to Ohm's Law, the relationship between voltage (V), current (I), and resistance (R) in an electrical circuit is expressed by the formula V = I × R. When the voltage across a resistor increases while the resistance remains constant, the current must also increase in order to satisfy this equation.

This is due to the direct proportionality between voltage and current in the context of a resistor. If the resistance is not changing, an increase in voltage leads to an increase in current. This principle is fundamental in understanding how electrical circuits operate, particularly in predicting how adjustments in voltage will affect current flow.

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