JAMB - Physics (2019 - No. 81)
A safety precaution designed to prolong the life of a lead acid accumulator is
By topping up the cells with concentrated acid
The use of naked flame when charging the battery
Keeping the specific gravity of the electrolyte within specified range
By connecting wires to the terminals directly when testing the level of charging
설명
- Topping is done with distilled water
- Naked flame should be avoided when charging the battery
- Direct connection of wires to the terminals should be avoided.
- Naked flame should be avoided when charging the battery
- Direct connection of wires to the terminals should be avoided.