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Given that the amount of energy discharged from the laptop battery is .200kWh, and assuming your lap-top’s battery is 85% efficient, how much energy is required to recharge your laptop?
Given that the amount of energy discharged from the laptop battery is .200kWh, and assuming your...
Two battery chargers (one for your laptop and the other for your phone) are plugged in at the same powerpoint. a) If the phone charger consumes 30 W of electrical power when operating, how much current would flow through it when connected to a household supply? (Show your working and explain your answer.) b) Explain how the laptop battery charger would be able to provide electrical safety to the operator in case of a short circuit. The laptop charger has...
A partially discharged car battery can be modeled as a 9.0-V emf in series with an 85-m internal resistance. Jumper cables connect this battery to a fully charged battery, modeled as a 12.0-V emf in series with a 22-m2 internal resistance. The cables connect + to +and-to- Part A How much current flows through the discharged battery? Express your answer with the appropriate units. ? I = 2.8 mA Submit Previous Answers Request Answer
To recharge a 15.0 V battery, a battery charger must move 4.04×105 C of charge from the negative terminal to the positive terminal. How much work is done by the battery charger?
To recharge a 18.0 V battery, a battery charger must move 2.56x105 C of charge from the negative terminal to the positive terminal How much work is done by the battery charger? Submit Answer Tries 0/12
To recharge a 18.0 V battery, a battery charger must move 3.77×105 C of charge from the negative terminal to the positive terminal. How much work is done by the batfery charger? Submit Answer Tries 0/12
To recharge a 10 V battery, a battery charger must move 3.7 105 C of charge from the negative terminal to the positive terminal. How much work is done by the charger? Express your answer in joules.
(1) Suppose the demand for laptop computer is given by 0-1000 - 4p1+2p2 where is the number of laptop computer, is the price of a lap top computer, and P2 is the price of a desktop computer (1) What is the ow-price elasticity of lap top computers? (a) p/ (b) - 4p/9 (e) -49/7 (d) 49/PL (2) What is the crow price elasticity of laptop computers? (a) 21/4 (b) Pula (c) 2p/ (d) -2pa/ (3) Are laptop computers and desktop...
A battery electric vehicle requires 120 Wh to accelerate to 100 kph including 20 Wh of energy required to overcome road loads and driveline loss. This EV uses an electric motor that is 92% efficient a). If the vehicle is then decelerated from 100 kph to a full stop using regenerative braking only (i.e. coast down) with the motor of 90% efficient acting as a generator, how much energy would be recovered in theory? b). If the vehicle decelerates from...
What is the total amount of energy stored in a 12-V, 85-A h car battery when it is fully charged?
4. -15 points My NotesAsk Your Teacher A battery with an emf of 10.9 V and internal resistance of 1.08 Ω carries a positive current of 0.515 A from its negative terminal to its positive terminal (a) How long is required for 1.04 C of charge to pass through the battery? (b) By how much will the electrical potential energy of 1.04 C of charge increase in crossing the battery terminals? (c) By how much will the chemical energy decrease?...