Multiple choice

Among the following cells, which one is suitable as a laboratory standard for calibration of voltmeters?

  1. The Weston cell

  2. The Chromic acid cell

  3. The Bunsen cell

  4. The Grove cell

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Weston cell, invented by Edward Weston in 1893, is a wet-chemical cell that produces a highly stable voltage suitable as a laboratory standard for calibration of voltmeters. It was adopted as the International Standard for EMF between 1911 and 1990.