Batteries are rated by their voltage, but also by the energy that they can provide. A...
Batteries are rated by their voltage, but also by the energy that they can provide. A typical D-cell battery has a voltage of 1.5 V, and is also rated at 15,000 mA•h—a product of current and time.
a. How much charge can flow from the battery before is discharged?
b. For how long could this battery power a 1.5 W flashlight bulb?
Homework Answers
Add Answer to:
Batteries are rated by their voltage, but also by the energy
that they can provide. A...
4. A flashlight uses two D cell 1.5 V batteries connected in serles to provide 3...
4. A flashlight uses two D cell 1.5 V batteries connected in serles to provide 3 volts cross ue ig bulb. The bulb draws 380 mA when turned on a. Calculate the resistance of the bulb b. Calculate the power dissipated c. If this flashlight was plugged into a wall (rather than using batteries) and we could keep the voltage and power the same. How much money would it cost to run the flashlight for one month (30 days) for...
Laptop batteries are rated in W⋅h, the product of the power (in W) that the battery...
Laptop batteries are rated in W⋅h, the product of the power (in W) that the battery can provide and the time (in h) that it can provide this power. For instance, a 50 W⋅h battery can provide 50 W for 1.0 h, 25 W for 2.0 h, and so on. A 10.8 V laptop battery is rated at 76 W⋅h. What is the total charge the battery can provide to the laptop before the battery is depleted?
A pair of alkaline D batteries can provide about 80000 J of electric energy at 3.0...
A pair of alkaline D batteries can provide about 80000 J of electric energy at 3.0 V. If a current of 0.5 A flows through two D batteries while they’re in the circuit of a flashlight, how long will the batteries be able to provide power to the flashlight? (answer must be in hours)
Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can...
Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can pass through the battery before the battery's chemical energy must be restored by the car's generator or some other source. The amp-hour unit is convenient for simple calculations. For example, a 60-amp-hour battery can supply a current of 1.0 A for 60 h (or 60 A for 1.0 h) before going dead. Find the energy stored in the following. (a) a 54 A-h, 14...
Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can...
Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can pass through the battery before the battery's chemical energy must be restored by the car's generator or some other source. The amp-hour unit is convenient for simple calculations. For example, a 60-amp-hour battery can supply a current of 1.0 A for 60 h (or 60 A for 1.0 h) before going dead. Find the energy stored in the following. (a) a 54 A-h, 13...
Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can...
Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can pass through the battery before the battery's chemical energy must be restored by the car's generator or some other source. The amp-hour unit is convenient for simple calculations. For example, a 60-amp-hour battery can supply a current of 1.0 A for 60 h (or 60 A for 1.0 h) before going dead. Find the energy stored in the following. (a) a 58 A-h, 13...
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...
Electrochemistry of Voltaic Cells: Batteries are voltaic cells. A typical AA battery is labeled a...
Electrochemistry of Voltaic Cells: Batteries are voltaic cells. A typical AA battery is labeled as providing an electrical potential of 1.5 V. After a long period of time, a battery in use may no longer provide enough electrical power to the device. Suppose you have checked an old battery with a voltage probe and measured a potential of 0.9 V. What chemical change could be responsible for this change in voltage (and power)? Write one or two complete sentences to...
What is the importance of batteries in using renewable energy such as solar and wind power? Batteries are very energy dense. Batteries provide energy even when it's dark and the wind is not blowin...
What is the importance of batteries in using renewable energy such as solar and wind power? Batteries are very energy dense. Batteries provide energy even when it's dark and the wind is not blowing. Batteries can be charged when energy is abundant and discharged when energy is not. Batteries can keep electricity flowing even when a cloud passes over head and reduces electricity production from solar panels. Batteries last forever (or at least a long time).
A typical small flashlight contains two batteries, each having an emf of 1.50 V connected in...
A typical small flashlight contains two batteries, each having an emf of 1.50 V connected in series with a bulb having a resistance of 18 Ω . A. If the internal resistance of the batteries is negligible, what power is delivered to the bulb? P = B. If the batteries last for a time of 4.1 h , what is the total energy delivered to the bulb? W = C. The resistance of real batteries increases as they run down....
4. A flashlight uses two D cell 1.5 V batteries connected in serles to provide 3 volts cross ue ig bulb. The bulb draws 380 mA when turned on a. Calculate the resistance of the bulb b. Calculate the power dissipated c. If this flashlight was plugged into a wall (rather than using batteries) and we could keep the voltage and power the same. How much money would it cost to run the flashlight for one month (30 days) for...
Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can pass through the battery before the battery's chemical energy must be restored by the car's generator or some other source. The amp-hour unit is convenient for simple calculations. For example, a 60-amp-hour battery can supply a current of 1.0 A for 60 h (or 60 A for 1.0 h) before going dead. Find the energy stored in the following. (a) a 54 A-h, 14...
Most questions answered within 3 hours.
-
What specific indicators can point to lack of progress for
African Americans in American society?
asked 48 minutes ago -
1-The Electrons in a beam are moving at 2.7×108 m/s in an
electric field of 15000...
asked 1 hour ago -
A gas tank is a vertical cylinder. It has a radius of 1m, a
height of...
asked 1 hour ago -
Accent Software faces the following conditions. All of these
support Accent’s use of a market-penetration pricing...
asked 2 hours ago -
A mathematically inclined friend emails you the following
instructions: "Meet me in the cafeteria the first...
asked 2 hours ago -
A monopoly sells in two countries . The demand curves in the two
countries are p1...
asked 3 hours ago -
A .15kg rubber ball is bounced off a wall. Before hitting the
wall, the ball moves...
asked 4 hours ago -
A manufacturing company preparing to build a new plant is
considering three potential locations for it....
asked 4 hours ago -
B. If compound Y has approximately the same values of solubility
in toluene as compound X,...
asked 4 hours ago -
Oscar Inc. has inventory in Japan valued at 39,051,000 Yen one
year ago. One year ago...
asked 5 hours ago -
If Canada suffered from "fundamental disequilibrium," and its
government choose not to devalue its currency, a...
asked 5 hours ago -
4. How many input & output Key Value Pairs are passed into,
and emitted out of...
asked 5 hours ago