2 22 A 30 V storage battery is charged from 120 V direct

Last updated: 6/11/2023

2 22 A 30 V storage battery is charged from 120 V direct current supply mains with a resistor being connected in series with battery to limit the charging current to 15 A If all the heat produced in circuit could be made available in heating water the time it would take to bring 1 kg of water from 15 C to the 100 C is minute Neglect the internal resistance of the batteryl