Mobile Phones Question And Answer
With 2 billion mobile phones in use worldwide. What is the total energy consumed daily to keep them charged?
1. The phone stores electricity from the mains supply.
2. The Base Stations are using power all the time.
If there are currently 2 billion mobile phones in use worldwide.
How much total energy do they use every day(assume they are always charged and always on)
Is it possible to compare the information content of a mobile call with a letter sent through the mail and its response.
Answers
alot
You can count this on next way: one mobile or wireless home phone need for charging current of 100 mA (miliampers) during the period of approximately 4 hours and approximately voltage of 6 volts. Thats mean one phone spend around 2.4 VAsec (or wattseconds) during the process of battery charging. For better comparison you must to transform volts to kilovolts, ampers to kiloampers and seconds to hours and then result multiple with 2 billions. That is. By my opinion final result is in giga watt hours (GWh). Best Regards and veradisca! Neven.
It is a statistical problem.
You can get a sample, liked, what is the average energy used daily for randomly selected 10 cell phones.
Then, you can answer the rest yourself.
