The best instrument for the measurement of the EMF of a cell is ______?

The best instrument for the measurement of the EMF of a cell is ______?

سیل کے ای ایم ایف کی پیمائش کے لیے بہترین آلہ ______ ہے؟
Explanation

The best instrument for measuring the EMF of a cell is a potentiometer.

It provides a precise measurement by comparing the cell’s EMF with a known reference voltage without drawing current from the cell.