subject
Engineering, 11.03.2020 17:47 Kjcampbell2

You are out of gas in the desert and you accidently dropped your phone battery down an Abandoned oil well. You have a charged car battery (12 volts) and a bunch of resistors and wire. You want to power your cell phone with this battery but the cell phone only operates if it has 3.6 Volts across its power terminals. (3.7 Volts will destroy the phone and 3.5 will fail to operate the phone.) If the cell phone uses 0.15 Amperes in all modes, design a circuit that will operate your cell phone from this car battery and let you call for help.

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:20
For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.
Answers: 1
question
Engineering, 04.07.2019 18:20
Wiy doeres rere okhn a pump whon working betwon the same pressure range?
Answers: 2
question
Engineering, 04.07.2019 19:10
An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?
Answers: 2
question
Engineering, 06.07.2019 03:10
Two slings are used to lift a girder of length l and uniform weight per unit length. what is the best position for the slings if the bending moment due to the weight of the girder is to be kept to a minimum?
Answers: 2
You know the right answer?
You are out of gas in the desert and you accidently dropped your phone battery down an Abandoned oil...
Questions
question
Mathematics, 11.10.2020 21:01
question
Social Studies, 11.10.2020 21:01
question
Business, 11.10.2020 21:01
Questions on the website: 13722363