railway RRB ALP (CBT 1 + CBT 2 + CBAT) Mock Test Series 2025 (New) Electrician and Wireman Cells and Batteries
In batteries, Watt-hour efficiency is always less than ampere-hour efficiency because
1
discharge voltage is more than charging voltage
2
discharge voltage is less than charging voltage
3
discharge current is equal to charging current
4
discharge time is less than charging time