A constant current of 3 A for 4 hours is required to charge an automotive battery....
A constant current of 3 A for 4 hours is required to charge an automotive battery. If the terminal voltage is 10 + t/2 V, where t is in hours, (a) how much charge is transported as a result of the charging? (b) how much energy is expended? (c) how much does the charging cost? Assume electricity costs 9 cents/kWh.
with concentration on part b. Thanks.
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A constant current of 3 A for 4 hours is required to charge an
automotive battery....
A constant current of 3 A for 4 hours is required to charge an automotive battery. If the terminal voltage is 10 + t/2 V...
A constant current of 3 A for 4 hours is required to charge an automotive battery. If the terminal voltage is 10 + t/2 V, where t is in hours, (a) how much charge is transported as a result of the charging? (b) how much energy is expended? (c) how much does the charging cost? Assume electricity costs 9 cents/kWh. with concentration on part b. Thanks.
The total charge a battery can supply is rated in mA·h, the product of the current...
The total charge a battery can supply is rated in mA·h, the product of the current and the time that the battery can provide this current. A battery rated at 1000 mA·h can supple a current of 1000 mA for 1.0 h, 500 mA for 2.0 h, and so on. (a) A typical AA rechargeable battery has a voltage of 1.2V and a rating of 1800 mA·h. For how long could this battery drive current through a long, thin wire...
A smartphone battery is capable of delivering a constant current of 2.7A for 16h when fully...
A smartphone battery is capable of delivering a constant current of 2.7A for 16h when fully charged. If the voltage across the terminals of the battery is 6e^(-3.2t)V , where t is in seconds, how much energy is associated with the battery?
(a) A car battery with 12 V emf and internal resistance 0.05 is supplying a current...
(a) A car battery with 12 V emf and internal resistance 0.05 is supplying a current of 50 A to the starter motor. Calculate the terminal voltage across its terminals of the motor? At what rate energy is dissipated in the battery? (3 marks) (b) Alisha is afraid of darkness and so sleeps with a 7.5W night light bulb on. She turns it on before getting in bed and tums it off 8 hours later. Determine the annual (365 days)...
A 9.5 V battery supplies a 3.5 mA current to a circuit for 7.0 h ....
A 9.5 V battery supplies a 3.5 mA current to a circuit for 7.0 h . Part A: How much charge has been transferred from the negative to the positive terminal? Part B: How much electric potential energy has been gained by the charges that passed through the battery?
1) A particular 12 V car battery can send a total charge of 84 A h...
1) A particular 12 V car battery can send a total charge of 84 A h (ampere-hours) through a circuit, from one terminal to the other. (a) How many coulombs of charge does this represent? (Hint: current = ) (b) If this entire charge undergoes a change in electric potential of 12 V, how much energy is involved?
The capacity of a storage battery, such as those used in automobile electrical systems, is rated...
The capacity of a storage battery, such as those used in automobile electrical systems, is rated in ampere-hours (A · h). A 50-A · h battery can supply a current of 50 A for 1.0 h, or 25 A for 2.0 h, and so on. Consider a 12.0-V battery that has an internal resistance of 0.26 Ω and a capacity of 55.8 A · h. The battery is charged by passing a 9-A current through it for 6.2 h. (a)...
Batteries are rated in terms of ampere-hours (A·h). For example, a battery that can produce a...
Batteries are rated in terms of ampere-hours (A·h). For example, a battery that can produce a current of 2.00 A for 3.00 h is rated at 6.00 A·h. (a) What is the total energy stored in a 9.0 V battery rated at 51.0 A·h? kWh (b) At $0.0630 per kilowatt-hour, what is the value of the electricity produced by this battery? NOTE: Enter your response with hundredths precision. cents.gif
A battery charger is connected to a dead battery and delivers a current of 3.7 A...
A battery charger is connected to a dead battery and delivers a current of 3.7 A for 2.1 hours, keeping the voltage across the battery terminals at 12 V in the process. How much energy is delivered to the battery?
Homework 1 A rechargeable flashlight battery is capable of delivering 105 mA for about 15 h....
Homework 1 A rechargeable flashlight battery is capable of delivering 105 mA for about 15 h. How much charge can it release at that rate? If its terminals voltage is 1.1 V, how much energy can the battery deliver? I. 2. The current entering the positive terminal of a device is )- A and the voltage across the device is v)-5dildr V (a) Find the charge delivered to the device between t-0 and (b) Calculate the power absorbed. (c) Determine...
(a) A car battery with 12 V emf and internal resistance 0.05 is supplying a current of 50 A to the starter motor. Calculate the terminal voltage across its terminals of the motor? At what rate energy is dissipated in the battery? (3 marks) (b) Alisha is afraid of darkness and so sleeps with a 7.5W night light bulb on. She turns it on before getting in bed and tums it off 8 hours later. Determine the annual (365 days)...
Homework 1 A rechargeable flashlight battery is capable of delivering 105 mA for about 15 h. How much charge can it release at that rate? If its terminals voltage is 1.1 V, how much energy can the battery deliver? I. 2. The current entering the positive terminal of a device is )- A and the voltage across the device is v)-5dildr V (a) Find the charge delivered to the device between t-0 and (b) Calculate the power absorbed. (c) Determine...
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