# Q.The watt-hour efficiency of a lead-acid cell varies between

• A25 to 35 %
• B40 to 60 %
• C70 to 80 %
• D90 to 95 %
Correct Answer : (C)

70 to 80 %

Hints :

The watt-hour efficiency of a lead-acid cell varies between 70 to 80 %

The charge required to liberate one-gram equivalent of any substance is known as ________  constant

The capacity of a cell is measured in