Question

A portable music player requiring 5 W is powered by a 3.7 V Li-ion battery with...

A portable music player requiring 5 W is powered by a 3.7 V Li-ion battery with capacity of 4000 mA h. The battery can be charged with a charger providing a current of 2 A. (a) How long can the music player run on full battery charge?(b) How long would it take to fully charge the battery?

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A portable music player requiring 5 W is powered by a 3.7 V Li-ion battery with...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A smoke detector operates on a 9 V battery having charge capacity of 4500 mA h....

    A smoke detector operates on a 9 V battery having charge capacity of 4500 mA h. (a) If the battery needs to be changed approximately every 2 years, how much power does the smoke detector consume on average? (b) Assuming that the battery can be recharged through a charger providing 0.5 A current, how long would it take to fully charge the battery?

  • An MP3 player takes two AAA batteries (1.5 V each) and has earbuds with a resistance...

    An MP3 player takes two AAA batteries (1.5 V each) and has earbuds with a resistance of 60 Ω. Figure out the current used. A charged AAA battery has a capacity of 1000 mA hrs. For how many hours can you listen to music assuming you can totally drain the batteries? The batteries are in series to get 3 V.

  • The Nissan Leaf is an all-electric car powered by a 107-hp electric motor and a lithium-ion...

    The Nissan Leaf is an all-electric car powered by a 107-hp electric motor and a lithium-ion battery that stores 24 kWh and produces 394 V at its terminals when fully charged. The Leaf's battery can charge at the rate of 3.3 kW from a standard 120-V power outlet, at 6.6 kW from a 240-Voutlet, and at 44 kW using a special 480-Vcharge. The Leaf's fuel economy is 3.38 miles per kWh, the equivalent of 114 miles per gallon in a...

  • Question zpus An electric field given by E = 2x y2i+yx?j +3zyk pierces the Gaussian cube...

    Question zpus An electric field given by E = 2x y2i+yx?j +3zyk pierces the Gaussian cube shown below. How much charge, in nC, is enclosed in the cube? (Eis in N/C,x,y and zin meters). Take E, = 8.85 x 10-12 c2/Nm2 (1,3,0) (4.3.0) (1.3.3) 4.3.3) (4,0,0) x (1,0,3) (4.0.3) Equations: Pexkon <-885x10 - * = SË-ch etj......--LE-di dji ſi-ar dy --[ich dyk Burger - [Edydi 0 +4.45 nc O +8.36 nc 0-10.3 nc 0 +5.26 nc 0 + 13.5 nc...

  • 1. A 2.40 mH inductor is connected in series with a dc battery of negligible internal...

    1. A 2.40 mH inductor is connected in series with a dc battery of negligible internal resistance, a 0.880 kΩ resistor, and an open switch. a. How long after the switch is closed will it take for the current in the circuit to reach half of its maximum value ? b. How long after the switch is closed will it take for the energy stored in the inductor to reach half of its maximum value? 2. A 4.75 μF capacitor...

  • Please read the article and answer about questions. You and the Law Business and law are...

    Please read the article and answer about questions. You and the Law Business and law are inseparable. For B-Money, the two predictably merged when he was negotiat- ing a deal for his tracks. At other times, the merger is unpredictable, like when your business faces an unexpected auto accident, product recall, or government regulation change. In either type of situation, when business owners know the law, they can better protect themselves and sometimes even avoid the problems completely. This chapter...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT