a. What is the power the charger delivers? b. How much energy does it supply to the battery during the 1.5 hrs
Brittney J asked:
A battery charger is connected to a “dead” battery and causes 4.4 A of current to flow through the battery for 1.5 hours. It maintains a potential difference of 1.5 V across the terminals of the battery.
A battery charger is connected to a “dead” battery and causes 4.4 A of current to flow through the battery for 1.5 hours. It maintains a potential difference of 1.5 V across the terminals of the battery.
A battery is essentially an electrochemical capacitor, so hook up a circuit and put a capacitor in there with those specs.
Charge:
I = ΔQ/Δt
4.4 Amperes = 4.4 Coulombs/second = ΔQ Coulombs / (1.5 hours * 60 minutes/hour * 60 seconds/minute) = ΔQ / 5400
4.4 = ΔQ / 5400
ΔQ = 4.4*5400
ΔQ = 23760 Coulombs
Power:
P = IV
P = 4.4 Amperes * 1.5 Volts
P = 6.6 Watts
4.4 A for 1.5 hours is 6.6 AH
times 1.5 is 9.9 Watt-hours
now i’ll read the question lol
charger delivers 4.4 Amps at 1.5 volts so the power is 6.6 Watts
the energy supplied, I’ve already done