Final answer:
When the voltmeter reads zero voltage across a resistor, it means that the voltage across the resistor is zero. The answer is A
Step-by-step explanation:
When the voltmeter reads zero voltage across a resistor, it means that the voltage across the resistor is zero. The answer is A) Voltage is zero. This indicates that there is no potential difference across the resistor, which implies that no current is flowing through it. It does not necessarily mean that the current is zero or the resistance is infinite.