Which of the following error encountered on the fall of potential method?
Right Answer is:
Inaccurate voltmeter reading
Several problems and errors may be encountered with the fall of the potential methods, such as
(i) Stray currents in the earth may cause voltmeter readings to be either high or low
(ii) The resistance of auxiliary electrode and electrical leads may introduce errors in the voltmeter reading.
This error can be minimized by using a voltmeter of a high impedance value.