The nickel cadmium (NiCd) cell is a rechargeable battery that has gained widespread use due to its reliability and performance. It consists of an anode made of cadmium, which undergoes oxidation in an alkaline electrolyte, and a cathode composed of nickel oxide, which undergoes reduction. The cell operates at a voltage of approximately 1.4 V and is commonly used in battery-operated tools, portable computers, and other applications where lightweight and rechargeable power sources are needed. The reactions in the NiCd cell can be easily reversed during recharging, allowing for repeated use
In what applications are nickel cadmium cells commonly used?
Nickel cadmium cells are commonly used in battery-operated tools, portable computers, cordless razors, and photoflash units
What happens to the reaction products during the discharge of a nickel cadmium cell?
The solid reaction products adhere to the electrodes, which allows the reaction to be easily reversed during recharging
How does the nickel cadmium cell compare to lead storage cells in terms of reaction reversibility?
Similar to lead storage cells, the reactions in nickel cadmium cells are easily reversible during recharging
What is the significance of the lightweight nature of nickel cadmium cells?
The lightweight nature of nickel cadmium cells makes them suitable for portable applications where weight is a critical factor
What type of electrolyte is used in a nickel cadmium cell?
An alkaline electrolyte is used in a nickel cadmium cell
What is the primary material used for the anode in a nickel cadmium cell?
a) Nickel
b) Cadmium
c) Lead
d) Zinc
Answer: b) Cadmium
What is the typical operating voltage of a nickel cadmium cell?
a) 1.2 V
b) 1.4 V
c) 1.5 V
d) 2.0 V
Answer: b) 1.4 V
What type of electrolyte is used in a nickel cadmium cell?
a) Acidic
b) Neutral
c) Alkaline
d) Organic
Answer: c) Alkaline
What is the main advantage of nickel cadmium cells regarding gas production?
a) They produce hydrogen gas
b) They produce oxygen gas
c) No gases are produced
d) They produce carbon dioxide
Answer: c) No gases are produced
In which applications are nickel cadmium cells commonly used?
a) Car batteries
b) Battery-operated tools
c) Solar panels
d) Electric vehicles
Answer: b) Battery-operated tools