Power Sources » Exercise - 13. The ratio of Ah efficiency to Wh efficiency of a lead-acid cell is : (a) always less than one (b) just one (c) always greater than one (d) either (a) or (b)
Power Sources » Exercise - 17. Sulphation in a lead-acid battery occurs due to : (a) trickle charging (b) incomplete charging (c) heavy discharging (d) fast charging
Power Sources » Exercise - 110. As compared to a lead-acid cell, the efficiency of a nickel-iron cell is less due to its : (a) lower e.m.f. (b) smaller quantity of electrolyte used (c) higher internal resistance (d) compactness