In a Daniell cell, what happens to the current flow if an external opposing potential ($E_{ext}$) slightly greater than 1.1 V is applied?.

What is the sign of Gibbs Free Energy ($\Delta G$) for a cell reaction to be spontaneous?.

Why is the Standard Hydrogen Electrode (SHE) potential taken as zero?.

Which material is used as the inert electrode in a Standard Hydrogen Electrode (SHE)?.

What defines an Inert Electrode? Give 2 common examples used in JEE problems.