Difference between Primary and Secondary batteries
Primary Batteries: Reaction occurs only once. They are not rechargeable and become dead after use. Examples: Dry cell, Mercury cell. Secondary Batteries: Can be recharged by passing current in the opposite direction. Can be used again and again. Examples: Lead storage battery, Nickel-Cadmium cell.
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Start Practicing NowIn a Daniell cell, what happens to the current flow if an external opposing potential () slightly greater than 1.1 V is applied?.
What is the sign of Gibbs Free Energy () 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.