👤

8.2. V₁ Switch S R V₂ Study the diagram above and identify a voltmeter that measures: 8.2.1. Potential difference across the ends of a conductor. 8.2.2. Emf. 8.2.3. Terminal potential difference. Give a condition for the voltmeter to measure the terminal potential difference, with reference to the switch (S). (1) (1)​

Répondre :

Based on the diagram provided:

8.2.1. The voltmeter V₁ measures the potential difference across the ends of a conductor.
8.2.2. The voltmeter V₂ measures the electromotive force (emf).
8.2.3. The voltmeter V₂ measures the terminal potential difference.

To measure the terminal potential difference, the condition is that the switch (S) must be closed or in the "ON" position.