Answer :
A battery charger is connected to a dead battery and delivers a current of 5.0 A for 6 hours, keeping the voltage across the battery terminals at 2 V in the process the battery charger delivers 60 watt-hours (Wh) of energy to the dead battery.
To calculate the energy delivered to the battery, we can use the formula: Energy = Power x Time
We know that the current delivered by the battery charger is 5.0 A and the voltage across the battery terminals is 2 V. Using Ohm's law (V = IR), we can calculate the power delivered to the battery:
Power = Voltage x Current
Power = 2 V x 5.0 A
Power = 10 Watts
Now we can calculate the energy delivered to the battery:
Energy = Power x Time
Energy = 10 W x 6 hours
Energy = 60 Wh (watt-hours)
Therefore, the battery charger delivered 60 watt-hours of energy to the dead battery.
Learn more about battery here: brainly.com/question/11670669
#SPJ11
