Electronics Engineering

paper capacitor

2x the peak supply voltage!

atleast 1 and a half lemons because a 60 watt lightbulb takes thirty lemons so the amount of lemons you use is supposedly half of the watts so if 3 watts would be 1 and a half lemons

The four diodes connected together as a diamond. A.C. comes in to the ones with the opposite cathode bands. One banded (cathode) and one non-banded (anode) end tied together. The D.C. goes out the places where the cathode bands are the same being v+ and where the anodes are is negative. It is between the transformer and the caps for the D.C. voltage. The transformer is connected to a packaged bridge and has "S" where the A.C. comes in and "+" and "-" where the D.C comes out.

They would be "oppositely" charged. In other words, one object would need to be positive and the other would need to be negative.

V=IR

R changes as a result of the change in temperature.

Broadly, diodes can be used for rectification, clamping, voltage drop, and gating.

As a rectifier, the diode is used to convert an AC voltage (often from a transformer) to a DC voltage.

In the simplest design, the half-wave rectifier, the diode is connected between the AC voltage and the DC voltage, and capacitors are connected across the DC voltage output.

The AC voltage is a sine wave that goes both positive and negative. At the brief times that the AC voltage is higher than the DC output voltage, the diode conducts, like a closed switch, and transfers energy to the capacitor(s). At other times, the diode is reverse-biased (its anode voltage is lower than its cathode voltage) and it behaves like an open switch. The capacitor(s) act as a reservoir to provide a (relatively) steady DC voltage.

Rectification is used in switching power supplies. A high-frequency AC voltage is fed into a compact transformer, which provides the electrical isolation required in the power supply, and the transformer's output is rectified as described above, except that the frequency of the AC voltage is typically 50,000 to 100,000 Hz, rather than 60 Hz. This requires high-speed, high-current diodes.

In clamping, the diode is connected so that it will conduct (i.e. its anode will be more positive than its cathode) at times when energy needs to be dissipated, as is often required with inductive loads. When the current flow to the inductor is interrupted, the inductor can generate very large voltage spikes (back EMF), which should be clamped. Usually the diode dumps energy from these spikes into a "soft" load made from resistors and capacitors. Most of the energy is dissipated in the resistors in the soft load.

A diode can be used to provide a relatively steady voltage drop of between 0.6 and 1.2 volts (depending on the diode type and the current) when a steady current is passed through it. The anode is more positive than the cathode. This can be useful in the design of various types of electronic circuits. The voltage drop is temperature-dependent - higher temperature causes lower voltage drop, so this can be used for temperature compensation of another part of a circuit.

The simplest example of gating using diodes is the diode "OR" gate. Two diodes are connected with their cathodes together; this is the output of the gate. The two anodes are inputs to the gate. When positive DC voltage is present at either input, the respective diode will conduct and feed that voltage through to the output. This can be used to "gate" multiple supply sources (e.g. an adapter supply and a backup battery) together, or at lower currents in control circuitry.

It would probably be an algorithm using fuzzy logic.

Traditional logic has only two possible outcomes, true or false. Fuzzy logic instead uses a graded scale with many intermediate values, like a number between 0.0 and 1.0. (Similar to what probability theory does.)

A fuzzy algorithm would then use fuzzy logic to operate on inputs and give a result. Applications include control logic (controlling engine speed, for instance, where it can be handy to have some intermediate values between "full speed" and "full stop") and edge detection in images.

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silver? I can't think of any use. conductors on chip are usually aluminum, polycrystalline silicon, or copper. bond wires are usually aluminum or gold. gold bond wires on aluminum pads are sometimes unreliable because of formation of "purple plague" in the weld causing high resistance and sometimes intermittent connections.

silicon? that is the semiconductor used to construct all the components.

As magnetic field of dc motor is constant. Whenever a current is given to rotor winding there will be a magnetic flux in air gap between rotor and winding so there will be torque in rotor of f=ibl.

so due to this torque rotor get rotate and get started.

The MCT2E opto coupler is basically a communication protection scheme. The opto coupler provides the galvanic isolation between the sending and the receiving side.

instro engg" a way to solve instro world problem "

due to high voltage across the diode ie more than piv of the diode or current flows more than maximum allowed range of diode.

One can purchase flip flops online many retail popular retail sites like at Jc Penny's and Zappos. There is the Flip Flop Shop and one of the better places for flip flops is Havaianas.

to make the revers biased p-n junction in SCR to be conducting.when we apply gate signal across gate and cathode it establish conducting part,thus the current from anode to cathode flow i.e main current.even after we remove the gate signal SCR in conducting mode because now this conducting path is maintain by main current i.e current from anode to cathode

Yes, but the 9V can't deliver as much current as the AA can. Internally a standard 9V contains 6 AAAA batteries. It would be best to use all AAAA cells or all AA cells, depending on current requirement of the load.

that is where the end stage does not consume current when there is no signal to amplify. Opposite of a class A where the current is constant with any signal level (except saturation...)

An intrinsic semiconductor is basically a pure semiconductor, though some might argue that a small amount of doping can still yield an intrinsic semiconductor. In the crystal structure of this material, there are very few electrons crossing the band gap into the conduction band, and this stuff doesn't want to conduct much current. But as temperature increases, more electron-hole pairs will appear as electrons jump that band gap and take up places in the conduction band. And if you guessed that increasing temperature will permit the intrinsic semiconductor to conduct current flow a bit better, you'd be right. The intrinsic semiconductor has a positive temperature coefficient. More heat, more conduction under the same conditions.

To start, while integrated circuits are smaller and usually require less power to operate, they are extremely difficult (if not impossible) to modify or repair. They almost always have to be replaced, and if the IC or "chip" is a proprietary chip, then the entire unit may have to be replaced. The IC is also more susceptable to electric damage from a power surge than its beefier component cousins. IC's have the advantage in weight, size and power consumption, giving IC's the nod on portability. They are also less prone to damage from physical jarring -- known as "solid state." When would you use non-IC components? High voltage applications certainly! Also, most musicians prefer the sound quality of tube amplifiers over transistor amps. Prior to the widespread adoption of integrated circuits, electronic systems consisted of components, such as transistors, resistors, capacitors and resistors, wired together on a board. This was labour-intensive and therfore expensive, as well as contributing to electronic faults when the process worker installed the wrong component, or allowed components to touch. Integrated circuits eliminated all that, because they can be consistently mass produced to very high quality standards. One disadvantage of integrated circuits is that they can be unsuitable for custom designed equipment, because high volumes are needed in order to justify the design and tooling costs. One way of creating some flexibility is to use a hybrid design - with key components in the IC, with some components left outside the IC to provide flexibility in component values. Another disadvantage of integrated circuits is that design corrections and incremental design improvements are not readily made. If a design error is found in a traditional circuit, it is relatively easy to modify each system to fix the problem, even under warranty. A potential disadvantage of integrated circuits is the cost of replacing an IC that has failed. However, this is a more apparent than real problem, because labour is usually the main cost of repairs. While the cost of buying a new component may be higher, the labour cost of diagnosing and replacing it is usually lower.

The maximum distance at which a radar set is ordinarily effective in detecting objects can be increase by lowering the pulse frequency, raising the peak power of the transmitter, narrow the beam with and increasing the pulse duration

And example of a sentence using the term density current might be this one: The water in the north was much colder than the basin water, and this colder water, because it was more dense than the seawater in the basin, created a density current that caused the cold water to flow into the lower area of the basin.

It means you can stick it up your cause idont know it.

Fluoroscopy is "live" - for example we watch barium as the patient swallows and it goes through their esophagus, stomach, and small bowel.

General radiography is still x-rays.

filter circuits