Final answer:
The advantages of a NiCad cell over a lead-acid cell are higher discharge current, longer cycle life, and being environmentally friendly.
Step-by-step explanation:
The advantages of a NiCad cell over a lead-acid cell:
- Higher discharge current: The design of the NiCad battery maximizes the surface area of the electrodes and minimizes the distance between them, allowing it to have a high discharge current.
- Long cycle life: NiCad batteries can be recharged and discharged numerous times, making them more cost-effective in the long run compared to lead-acid batteries, which have a limited service life.
- Environmentally friendly: NiCad batteries do not contain toxic lead and are safer for the environment compared to lead-acid batteries, which require special disposal precautions due to the lead content.