Q. A lead acid accumulatory (storage battery) is connected to a battery charge for over night charging. Which of the following observations will indicate that the battery was partly charged during the next morning
A) The density of acid has decreased
B) The density of acid has increased
C) The acid has changed colour
D) The acid level has dropped
Explanation
(b) During charging of lead-acid accumulator, the specific gravity of $H_{2}SO_{4}$ increases.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.