in f to V converter, input is frequencies . Is that electrical or Mechanical frequency?...
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Hey guys,
I am curious on how to set up a 2 stage JFET amplifier. I've reviewed some analysis on 2 stage BJT amplifiers as well as 2 stage BJT/JFET amplifiers but I cannot find anything on how to ...
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Hey guys. I have a problem here that I need help with big time, but I have no clue where to start. Can anyone help me get started? I attached the problem below....
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What causes relay chattering and what can be done to prevent it?...
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Hi,
I had auto lights failing and instead of let the mechanics supply me with a brand new switch unit at a great rate, I delved into the switch unit to see what was happening.
I noticed a lot of o...
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Hi all, I have the following code:
Quote:...
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Hello,
I opened up an AC to DC power supply today to see where they connected the earth ground wire and I found that it's connected to the negative side (labeled V-) of the DC output. V- is also c...
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I'm a high school senior at my school and I have decided to pursue a career in electrical engineering. I was wondering what kind of advice you guys would give me to guide me in my path of learning in ...
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I understand that for a semiconductor p-n junction under zero voltage, the Fermi level is constant throughout the junction because that is the condition for a system in thermodynamic equilibrium.
...
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How do I calculate the consumption of energy for an apparatus with these characteristics: 230V / 50Hz / 1Ph ?...
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circuit.bmp [http://www.physicsforums.com/attachment.php?attachmentid=11641&d=1195598084]>
Hello everyone,
I am trying to learn about electrical circuits for a physics class.
I have at...
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Hello,
When is it OK to connect the shield wire of a loadcell to the 0V rail vs chassis ground? I have seen it connected to the 0V rail but other sources seem to indicate that it should be connect...
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Could u guys reccomend some e books for loop and nodal analysis . I am having some problems implenting the methods to solve poblems. or may be u could give me some tips...
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I have a negative clamper with a simple capacitor and a single diode. This circuit clamps the Sinusoidal wave (2V- peak to peak) to the negative peaks and makes the output (0 to 4V) ..
My question ...
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Does anyone know of a very small tracking device or tag that can be tracked .5 mile or more and the size of watch battery or smaller. I looking for such a device for dog tracking....
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>Hii everybody
Am having some problems and facing some dificulties concerning, the topic of operational amplifiers and more precisly feeding back with the inverting and non inverting terminlas, ...
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A current is driven from a current source as shown attached. Determine the branch currents if the circuit is configured for maximum power transfer.
Does anyone know how to solve this problem. Any help...
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Hello All,
I'm working on a circuit that can detect a voltage input and convert it to a digital value that my micro-controller can read. But I'm having some trouble finding the right Analog to Dig...
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This is an electrical question but bare with me for some background.
I have a project creating an epoxy based granite material.
The sphere packing density is quite high with aggregate sizes fr...
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Hello to all,
I need to be able to power 10 laser pointers at the same time all running from one adapter. Each laser is normally powered by 3 LR44 batteries, wich are 1.5v each (I dun...
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Hi guys,
I need to build a REALLY simple amp for a friend. I only want to use a resistor and a transistor plus the normal stuff(battery and speaker). Please help.
Thanks in advance,
Circuit M...
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here's an idea i just came up with, it's to run DC into the primary of a tranformer and get a constant output: place a brush motor (like the ones in model airplanes/cars) in series with the primary co...
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Heating Wire having the following Data :
SWG 16(1.63mm)
Specific Resistivity = 1.45 ohms-mm-3
Density = 7.1 gm-cm-3
Resistance = 0.685 ohms/Meter
Weight = 15 Gram/Meter
(a)Please help me...
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I have connected one IC circuit which is taking from a remote control car. Then I connect it to the a power supply which is 9V. It doesn't work in the beginning. But I don't know why it works after I ...
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Why is the outermost ring of an optical encoder the least significant bit? Is this somehow related to frequency?...
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