Electronics Engineering

3 cycles / 12 seconds = 0.25 cycles / second, or 0.25 Hz.

3 cycles / 12 seconds = 0.25 cycles / second, or 0.25 Hz.

3 cycles / 12 seconds = 0.25 cycles / second, or 0.25 Hz.

3 cycles / 12 seconds = 0.25 cycles / second, or 0.25 Hz.

ROM (Read only Memory) and RAM (Random access memory).

However, there are loads more types of computer memory than these two.

R is inversely related to temperature T so as temperature increases resistance decreases.

Specifically, R increases if the T coefficient is pos.(P.T.C) And decreases if T coefficient is neg. (N.T.C) Most conductors have P.T.C and most insulators have (N.T.C) . xept. like carbon. 1 of few conductors that has a N.T.C. But all can be found on a tablet. R.T.C / R mil-foot ,R, millimeter-meter and R.T.C @ 68*F

By Kirchhoff's Voltage Law, the sum of the voltage drops around the series circuit will equal the voltage applied to the circuit.

An electronics multiplexer will select an output by a digital code. a mechanical multiplexer will select an out by a mechanical switch of sort possibly driven by a motor

a capacitor have a property it oppose any change of voltage

The television picture tube receives video signals from the tuner and translates the signals back into images. The images are created by an electron gun in the back of the picture tube, which shoots a beam of electrons toward the back of the television screen. A black-and-white picture tube contains just one electron gun, while a color picture tube contains three electron guns, one for each of the primary colors of light (red, green, and blue). Part of the video signal goes to a magnetic coil that directs the beam and makes it scan the screen in the same manner as the camera originally scanned the scene. The rest of the signal directs the strength of the electron beam as it strikes the screen. The screen is coated with phosphor, a substance that glows when it is struck by electrons. The stronger the electron beam, the stronger the glow and the brighter that section of the scene appears. In color television, a portion of the video signal is used to separate out the three color signals, which are then sent to their corresponding electron beams. The screen is coated by tiny phosphor strips or dots that are arranged in groups of three: one strip or dot that emits blue, one that emits green, and one that emits red. Before light from each beam hits the screen, it passes through a shadow mask located just behind the screen. The shadow mask is a layer of opaque material that is covered with slots or holes. It partially blocks the beam corresponding to one color and prevents it from hitting dots of another color. As a result, the electron beam directed by signals for the color blue can strike and light up only blue dots. The result is similar for the beams corresponding to red and green. Images in the three different colors are produced on the television screen. The eye automatically combines these images to produce a single image having the entire spectrum of colors formed by mixing the primary colors in various proportions.

-Famously Unknown

In parallel.

470K ohm at 5% tolerance

Because the actual resistor is too small to print numbers, so color bands and math are used instead. I just don't know how to calculate the values.

Michael faraday

A zener diode is designed to allow a current to flow through it in a direction that is reverse to the normal flow of current that would occur if it were used as a rectifier. Current can flow through a zener diode in both directions. In the forward direction, current will flow at a low voltage, usually about 1 volt. In the reverse direction, no current will flow until the voltage impressed across it is equal to the zener voltage. At this point, a current will flow and an extremely small increase in voltage will cause a large increase in current. Most importantly, it should be noted that the current flow through the zener diode is in the reverse direction to that of a normal rectifier. With the application of sufficient reverse voltage, a p-n junction will experience a rapid avalanche breakdown and conduct current in the reverse direction. Valence electrons which break free under the influence of the applied electric field can be accelerated enough that they can knock loose other electrons and the subsequent collisions quickly become an avalanche. When this process is taking place, very small changes in voltage can cause very large changes in current. The breakdown process depends upon the applied electric field, so by changing the thickness of the layer to which the voltage is applied, zener diodes can be formed which break down at voltages from about 4 volts to several hundred volts.

Circuit parameters can be classified as:

1-- Active or Passive
2-- Linnear or Non-linnear
3-- Unilateral or Bilateral
4-- Lumped or Distributive

1-- Active or Passive:
Those circuit elements that supply energy to an energised circuit are called active circit elements. Eg.: Voltage source, current source,etc.
Note: It is important to note that dependent sources cannot be placed under this category as they depend on the value of current or voltage in any other branch of the network.

Passive circuit elements, on the other hand, are those elements that use up the energy supplied by the active sources and\or do not supply their own energy to the circuit.
Eg.: Resistor, capacitor, inductor, etc.
Note: It is important to note that a capacitor does store energy and also supplies it back to the circuit but this energy is not of its own, instead it's the energy supplied by some active component. Hence, it cannot be placed under the category of active circuit parameters.

Thus an energised network(or a circuit) consists of both active and passive elements.


2--

Analog modems use the telephone cable to send audio signals, which represent 1's and 0's over a connected phone line, using phone voltages.

Digital modems use a high frequency signal with the data superimposed on it. They can use the copper phone wires like an antenna. In this way there does not have to be phone connection in use. The phone can be used as well as the signal, if a filter is used to stop interference.

Digital modems can also use fibre optic or coaxial cables.

This is one of the important process in communications. This is the condition at which the gain is high,because the inductive and capacitive reactances of the system equals each other and gets cancelled.

There are many different types of cathode ray oscilloscopes. Some of them are: analogue, digital storage, digital phosphor, and sampling.

lets understand this with the help of an example, suppose we have to fill a water tank on the roof top with the help of a motor,now to get an idea of the overflow we can use the rain alarm. The rain alarm apparatus is placed below the tank in such a way that water strikes the rain sensors as soon as the overflow occurs,now as we know that water is a good conductor of electricity,so the circuit gets completed by this overflowing water and the alarm rings,giving us an indication about the overflow. this is a practical application of rain alarm in day to day life.

idol worship. similar in almost each and every way to the greek religion, except the gods were named differently. the most important ones were named after planets

An analog watch can be purchased in many different places. Department stores, jewelry stores, and websites are a few options when trying to find a new watch.

a dry cell has many uses. it is basically a battery. a dry cell can be used in torches, clocks, watches, etc. this is the exact definition of a dry cell (from Science Focis 2) "A dry cell is not completely dry, but contains a chemical paste instead of a liquid. As in a wet cell, a chemical reaction generates charge that will flow when the cell is connected to a circuit"

Not that easily. A three-phase system can be broken out into three separate single-phase supplies, but in the three phase system the three supplies must have the right phase relationship, spaced apart in time by one third of a cycle always.

The reason for that is that we can consider each separate supply as having a live wire and a neutral wire. With a 3-phase system if the three neutral wires are comined into one neutral wire, the current in that single neutral wire is zero - provided all three live wires supply equal currents and the right phase relationship is maintained.

Doyou mean LS400 lexus? The amplifier is integrated with the radio that power the speakers. Be aware that removing the radio on a LEXUS it may not work afterward because of a memory code installed into the radio to make inpossible to steal it.

Resistance Temperature Difference. Used in thermocouple technology.