I need help with circuits - filters?
916828
ok..u have for main categories of filters..\n\nlow pass (allow lower freq)\nhigh pass (allow higher freq)\nband pass (only allow a small band of freq)\nband stop (allow everything but a small band of freq)\n\npassband is a term used to describe the frequency portion of the filter where the signal goes through unattenuated (i.e. it isnt stopped).\n\nstopband is a term used to describe the frequency portion of the filter where the signal is attenuated (i.e. stopped)..\n\ngl with it..
434630
dont forget the formula I= R/U\nsort them and u will get the answer\n\n Current: 625mA (milli amperes)\nResistance: 19.2 ohms
513117
use a potato and two different metals as electrodes. The link will help you, do your own homework, or web searching atleast! it was the second link in google for g** sake!
820591
Add the loads in amperes of each of the appliances on that circuit.  Make sure that the total is less than the ampere rating of the circuit breaker.  You should probably only use about 3/4 of the amperes the circuit breaker is rated for.  For example, a 20 Amp breaker should only be loaded with about 15 Amps.\n\nIf only the wattage of an appliance is given, divide the wattage by the voltage to obtain the amperes.  For example, a toaster may draw 1200 watts.  1200 watts / 120 V = 10 Amps.  A light bulb may draw 60 watts.  60 watts / 120 V = .5 Amps.
821458
Use Ohm's Law.\n\nMake the network, put 10 volts across it, find how much current is being drawn across the 10 volts.\n\nE = iR so R = E/i, where E is 10 volts, and i is the current, amps, then R is the resistance in Ohms.
93256
Try this website. Scroll down to "The Circuit" ---\n\nhttp://www.play-hookey.com/ac_theory/ac_rc_series.html
471384
In no particular order ..... \n\nAt low frequencies the necessarily high values of L and C can result in an inconveniently large size.  \n\nAn active filter, which can be designed to exhibit and work with higher impedance values means that smaller values of C can be used.\n\nAdditionally the use of a gyrator configuration can eliminate the need for L.\n\nA passive filter is inherently lossy, at least to some extent.\nAn active filter can have gain.\n\nAn active filter is usually smaller than a passive one.\n\nA passive filter doesn't require a power source.
961641
http://hamilton.bell.ac.uk/hncexam/Samplepaper.doc ;-)
1154736
www.alldatasheet.com\nYou have to be familiarized with the types of components though. I use the site a lot for my electronic projects.
482578
Do you know such a filter exists?
267078
There is a computer program called "Circumventer" that gets around filters.  That's all I know about it.  I guess you could find it if you searched.
997515
vernier callipers \nmeasuring weights\nmagnet bars\nIC tester\nvoltmeter\nammmeter\nenergy meter\nMultimeter\nDC Power Supply \nFunction Generator \nDigital Multimeter \nOscilloscope \npower wires\nBreadboard\nresitors \ncapacitors\nvoltage divider and current divider circuits
854307
The Butterworth filter is one type of electronic filter design. It is designed to have a frequency response which is as flat as mathematically possible in the passband. Another name for them is 'maximally flat magnitude' filters. \nThere is a load of stuff on the link below it sounds to me like it can be both, but electrics isnt my biggy im, afraid check it out.\nhttp://en.wikipedia.org/wiki/Butterworth_filter
1111658
http://www.epanorama.net/circuits/vga2rgbs.html
576166
the electrical circuit?
384866
go to http://ucp.ece.gatech.edu/content/3042/3042_WA2_fall03.pdf#search='pulse%20width%20modulator%20with%20555%20timer%20and%20LM311%20comparator\n\nor\nwww.colorado.edu/~ecn4618/lab2.pdf\n\nI hope this helps you somewhat.
246159
http://www.ee.duke.edu/~cec/final/node21.html#SECTION004101000000000000000\n\nhttp://www.electronics-lab.com/projects/test/014/\n\nI'm not sure you'll find all you need, but they would help.