10 Questions
What is the function of the separator in a battery?
To create a barrier between the cathode and anode.
How would you describe the total energy contained within a battery?
Using Amp-hours (A-hrs).
What happens to the electrodes in a battery during a chemical reaction?
They slowly dissolve in the acid.
What is the main difference between primary and secondary cells?
Primary cells cannot be charged, while secondary cells are rechargeable.
What is unique about primary cells?
They are also known as dry cells, have high internal resistance, and have an irreversible chemical reaction.
What is the main difference between primary cells and secondary cells?
Primary cells cannot be recharged and have to be discarded after their lifetime, whereas secondary cells need to be recharged when the charge gets over.
What are the typical components of a fuel cell, and how do they enable the generation of electricity?
A fuel cell consists of a cathode, an anode, and an electrolyte. The electrolyte enables the movement of protons, allowing the electrochemical reaction to generate electricity.
What is the key advantage of fuel cells over other types of electrochemical cells?
Fuel cells can constantly generate electricity until the supply of fuel and oxygen is cut off.
What are some examples of secondary cells, and what are their characteristics?
Examples of secondary cells include Nickel-Cadmium batteries, Lead-Acid batteries, and Lithium-ion batteries. They have low internal resistance, are rechargeable, and have a high initial cost.
What are the main differences between primary cells, such as Zinc-Carbon cells, and secondary cells, such as Nickel-Cadmium batteries?
Primary cells are non-rechargeable, have high internal resistance, and are relatively simple to use. Secondary cells are rechargeable, have low internal resistance, and are more complex to use.
Learn about the internal components of a battery, including the cathode, anode, and electrolytes, and how they work together to generate electricity. Understand the concept of Amp-hours and how it relates to battery performance.
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