Question

Potential difference is measured by:

• A. Ammeter
• B. Voltmeter
• C. Voltameter
• D. All of these

Hint:

A voltmeter is always connected in parallel to measure potential difference, while an ammeter is connected in series to measure current.

Answer 1

The Correct Option is B

Step 1: Understanding how potential difference is measured. Potential difference (voltage) across a circuit component is measured using a voltmeter, which is connected in parallel to the component.
Step 2: Explanation of incorrect options.
- Ammeter measures current, not voltage.
- Voltameter is used in electrolysis, not for measuring voltage.
- All of these is incorrect because only the voltmeter is used for measuring voltage.