Electronics Engineering

If you have a circuit, the electrons will move through it and reach the negative terminal of, let's say, a battery. But if you have a direct line from the anode to the cathode, the electrons will ignore everything else, such as any LED's or motors you have on the circuit. In the case of electrical outlets, the cathode is unable to withstand as much electricity as the anode gives out. Also, this can cause an "arc" of ionized plasma to jump from the anode to the cathode, and I don't think you want to arc weld your electronics to the outlet...

If an RF signal is AM modulated with a analogue signal any noise will add or subtract to the amplitude of the RF signal and will be present in the audio signal after detection, also will the noise add itself to the audio signal, where as in digital communication a slight variation in the amplitude of the signal is of no concern because you only work with ones and zeros, it's high or it's low

System bus, memory bus, front side bus (FSB), host bus, local bus, or external bus.

The capacitance counter acts the inductivity (decreases it) without impacting the resistivivity, thus increasing the power factor, or resistivity / inductivity ratio.

used as a adjustable band pass filter...

It gives the possibility to generate several precise baudrates for serial communications. With 12 MHz you introduce small errors that will however be acceptable for hobbyists.

The electrical term "Farad" was named after the popular scientist Michael Faraday. Faraday is well known for his work in electrical components and electro-magnetism. His most famous invention is called the Faraday Cage.

increases

since gain is simply -Rf/Ri and is 1+Rf/Ri in case of non inverting

very low current

If the voltage across a resistor or resistors is halved, then the resulting current will also fall by half.

Because it is not necessary, and providing that bandwidth would increase cost and complexity. While the full range of 20Hz-20KHz is required for proper rendering of music, telephony, by standard, only requires a 3.5KHz bandwidth. You can hear and understand the spoken voice with only this range. You do not need the extended musical range.

A thermocouple is a temperature sensor, or more precisely measures temperature differences between two locations. Because it uses only wire in the sensing, it can be useful for measuring extreme hot or cold temperatures or in difficult environments.

A thermocouple works because of the thermoelectric effect. What's thermoelectric effect? Thank a cat named Seebeck for the answer. If a piece of metal is warmer at one end than at another, the temperature gradient (the difference in temperature) creates a tiny voltage and the voltage depends on the type of metal. In a loop of wire made from the same material, the voltage effect cancels. But if the loop contains two different metals the different parts of the loop produce different voltages ,and the voltage difference can be used to calculate the temperature difference. The voltage set up (usually a few microvolts or 1/1,000,000ths of a volt) is usable to measure temperature difference with an external circuit. The conversion from voltage to temperature is typically a complicated polynomial equation. And in this day and age, the electronics to measure and convert are cheap and the device is fairly accurate.

Since the thermocouple only measures the difference in temperature between two points, you also need a reference temperature measurement. In the old days, this was done with an ice bath (0 degrees C), but now usually another temperature sensing device is used.

Need something to measure temperature and talk to control circuits in equipment that is used to heat stuff? Like your oven, maybe? We've got just the ticket. It's a thermocouple temperature probe. Works well, lasts a long time and doesn't wear out.

Current relays are the relay which sens the current passing in particular circuit and operates when this current exceed its set value.

I recently came across one of these. It's a bandpass design(I believe) with some sort of 'active' compensation- It uses an "STK" chip. Seems to be a subwoofer with ability to also power front/rear speakers. I'd (also) like to hear/see more on this unit.

RTS (Request-to-send) packets are a mechanism used by the 802.11 wireless networking protocol which establish an open communiction to an AP or node. The client machine transmits the RTS to the AP which in turn sends a CTS packet (clear-to-send) back to the client. This prevents packet collisions, which are common among unmanaged high density networks. In most routers, the default setting for the RTS threshold will be around 500. Acceptable packet sizes range from 0 to 2'347.

"E" indicates an error condition. This is generally caused by attempting a calculation out of the calculators possible range of answers, or by static electricity altering the memory contents. Try the AC (all clear) button, power on/off, removing and re-installing all batteries, using a straightened paper clip to depress the reset button (usually on the back of the calculator)

Inductors are considered to be a load for reactive power, meaning that they will draw reactive power from the system. Capacitors are considered to be sourced of reactive power, they feed reactive power into the system. If you have a circuit that is at unity (balanced with inductors and capacitors) no reactive power will be drawn from the source. You will have unity power factor. If your circuit is more inductive than capacitive it will be drawing reactive power from the source. The opposite is also true for capacitors.

There are several examples of BEAM robots which are line followers. BEAM robotics uses simple logic chips for the "brain" like the 74AC240 which costs $1 or so. The rest of the components are discrete components which means no microcontrollers are involved - only the usual parts like diodes, resistors, capacitors etc. I've included 2 links in the "Related Links" section below.

There is a thermoelectric generator between the heat sink and combustion chamber. The generator produces power which, in turn, spins the fan(s) in the unit.

Zero to 100 ohms.

Both hybrid integrated circuits and monolithic integrated circuits were used in third generation computers. These integrated circuits contained from 4 to 100 transistors per integrated circuit.

The image above shows hybrid integrated circuits of the type used in the IBM System 360 line of computers.

The stronger the magnetic field on your inductor the greater amount of current you will have flowing through your series circuit.

Emitter

While there may be very rare exceptions to this, nearly 100% of the time neutralization of an HF PA or power amplifier vacuum tube has virtually nothing to do with VHF or UHF oscillations. VHF oscillations are almost always caused by a high impedance (parallel resonant) path from a grid to ground. The high impedance prevents the grid from being "clamped" or held at ground potential for RF at some frequency or range of frequencies. If this high impedance resonance happens to occur at a frequency range where the anode path to ground is parallel resonant, the tube can act like a tuned-plate tuned-grid oscillator. Hope this helps! It is also called Unilateralisation:- it is a process by which neutralising or nullifing the internal feedback effect causing internally, by connecting an additional network. It is explained breifly in the related link.