Determine what mah capacity should the batteries have

Assignment Help Electrical Engineering
Reference no: EM13263090

A student project requires a 6 V DC power supply that can source 300 mA. The batteries for the power supply must last for a minimum of 8 hours of continuous operation. NiMH rechargeable batteries in AA size are to be used. A) How many batteries are needed? B) What mAh capacity should the batteries have?

Reference no: EM13263090

Questions Cloud

Calculate the force the floor exerts on the passenger : An elevator is moving up at a constant velocity of 2.5 m/s Calculate the force the floor exerts on the passenger, Calculate the force the floor exerts on the passenger
Determine using the internal rates of return criterion : Determine using the internal rates of return criterion with an incremental analysis which will offer the largest monetary benefit to AWS if their MARR is 12%.
Changes in a dna molecule may have no effect on the protein : the following changes in a DNA molecule may have no effect on the protein for which the DNA codes
What is the energy output of the machine per second : An electric motor with a 2.7-hp output drives a machine with an efficiency of 35%. What is the energy output of the machine per second
Determine what mah capacity should the batteries have : A student project requires a 6 V DC power supply that can source 300 mA. The batteries for the power supply must last for a minimum of 8 hours of continuous operation. NiMH rechargeable batteries in AA size are to be used.
What is the portfolio beta : Susan Richmand has $150,000 invested in a 2-stock portfolio. $43,600 is invested in Stock X and the remainder is invested in Stock Y. X's beta is 1.70 and Y's beta is 0.80. What is the portfolio's beta?
What is the required rate of return on steve services stock : Steve Services stock has a beta of 1.4. The risk-free rate is 6.7%, and the expected return on the market is 8%. What is the required rate of return on Steve's Services stock.
Define what is the percentage of salt by mass in the mixture : A mixture is made by combining 1.39 lb of salt and 5.07 lb of water. What is the percentage of salt (by mass) in this mixture?
Estimate the area in terms of number of 1-bit full adders : Estimate the area in terms of number of 1-bit full-adders and additional 2-input logic gates. For performance, use the timing analysis tool provided in the Xilinx Tools as follows: In the Process Window, go to Implement Design

Reviews

Write a Review

Electrical Engineering Questions & Answers

  What is the pressure of the gas mixture

a sample of gas composed of 5.7 grams of carbon dioxide and 3.6 grams of neon in a container with volume 5.7L and temp 67 degrees Celsius. what is the pressure of the gas mixture

  Tabulate the frequency-peak values and average powers

A full wave rectified current has a peak value of 20 A and a period of 2ms. Assume the current is flowing in a 50 ohm resistance. Tabulate frequency, peak values and average powers of the first four nonzero compoents in the spectrum.

  At what value of rl do the two curves intersect

A transmission line segment with Zo=50 Ohms and of length l is terminated at a load resistance of RL that can be varied. Sketch the input impedance Zin as a function of RL if (a) l=(wavelength/4) and (b) l=(wavelength/2).

  What is the ber at the output of the receiver in clear air

What is the BER at the output of the receiver in clear air conditions, and the average time between errors? Give your answer in years, days, or hours as appropriate. Assume an implementation margin of 0.5 dB.

  Determine the voltage profile in the device

A p-n junction is made by doping Silicon with donors and acceptors. The doping at the p side has a uniform density of NA, but the doping density at the n side is not uniform and changes linearly with the distance from the metallurigical junction.

  How many atoms are there in the unit cell

(a) How many atoms are there in the unit cell characterizing the Si lattice (b) Verify that there are 4.994 X 1022 atoms/cm' in the Si lattice at room temperature. (c) Determine the eenter-to-center distance between nearest neighbors in the Si lattic..

  Calculate the power converted to mechanical power

A 480 V permanent magnet ac motor is consuming 10 kW at power factor 0.80 lagging. Its speed is 1800 rpm. The winding resistance is 0.5 ohms per phase. Core losses are 100 W.

  Describe the basic operation of the n-channel mosfet

Describe the basic operation of the n-channel MOSFET, the relationship to VGS, VDS an IDS. This would include such things as accumulation, inversion, pinch-off point, etc. Which end is the drain

  Discuss why a project plan is not a microsoft project file

what is meant by "proactive" project management. Discuss ways in which to ensure that projects are being managed proactively. Investigate on the internet the features of Microsoft Project. Discuss why a project plan is not a Microsoft Project file.

  What is the maximum temperature the device

A GaAs device is doped with a donor concentration of 3e^15/cm^3 . For the device to operate properly, the intrinsic carrier concentration must remain less than 5% of the total electron concentration

  By what amount will their bill be reduced during the months

An office building is billed based on the rate structure given in Table 5.3 (Energy charges is $0.0732/KWh and demand charge is $9 / mo-kw. As a money saving strategy, during the 21 days per month that the office is occupied

  What is the forward propagating voltage waveform

The following represent solutions of the transmission line differential equations for some arbitrary function f(u): V(z,t) = 60 cos(1000t -5z) - 120 pi f (2t + z/100+12) V I(z,t) = 2 pi f (2t +z/100 +12) - cos (1000 t -5z) A a) what is the forward pr..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd