Electronics Engineering

It is basically composed of p or p+ or n or n+ impurities.

no

You generally plot a graph of Voltage v/s Current (with voltage on Y axis and current on the X axis). The graph will not be a straight line.

Broadcast television currently does not use 1080p. The HD formats in use at present are 720p and 1080i. The "i" stands for interlaced and it means that on a single pass of the screen half of the image is built up. The second pass sees the remainder of the image added to the first half. A full image is delivered 25 or 30 times each second. A 1080p signal delivers a full image on every pass, 50 or 60 times each second. 1080p therefore needs double the amount of data compared to 1080i. Broadcast infrastructure and the extra bandwidth requirements prevent 1080p being broadcast. 1080p is limited at present to Bluray and other local HD sources such as computers and game consoles. Don't expect to see 1080p from your television service provider any time soon. The 1080p identification on the television says that it will display 1080p but of course can only do this with a 1080p incoming signal.

with a bread board you do not need to solder the components. you can just place them in the holes and remove them as you please.

As load is conected in circuit , so thre is no open circuit therefore there would not be any open circuit voltage.

A: Using analogue or digital meters is simple but dangerous for the meter if set on the wrong scale and/or function. Trying to measure 100v on an scale that reads ohm can destroy the meter. Analogue meters usually have a coil that requires only 50 micro amps for full deflection

Zigbee technology has many different advantages and not a lot of disadvantages. Some advantages include lower costs and it can work in any type of market even with low power sensors. A disadvantage is that it is a bit slower than other technologies.

A: There is none because of the variety and diversity of fields to be interested in. It is up to the individual the field of electronics that he she be happy with.

None, since one does not normally "power" a solar panel.

However a single 7w lamp would be useable with a 5watt panel but with reduced efficiency unless the panel was used to charge a battery first and then the bulb was powered by the battery.

For transmission through a radiowave.

Harvard Law School is the obvious answer, but if you want something that is useful, I would recommend electronics with a specialization in RF technology.

In switching power supplies.

If your multimeter has a transistor check (hfe), then place the Collector,Base& Emitter in the CBE port of multimeter.

Turn the shaft to Diode mode.

If the value is zero,skip that transistor.

You can use the forward resistance of each junction, using the ohms range or diode check function.

Put the leads on the Base and Emitter, then reverse the leads. You should get about 600Ohms forward bias and open circuit (infinity) reverse bias.

Do the same between the Base and Collector. You should get the same results.

Finally put the leads between the Collector and Emitter. You should get open circuit both ways around.

Be aware that some high power transistors have a diode across the Emitter and Collector.

These tests will just be a basic 'go - no go' test. It may pass this test and yet still not perform fully.

You can see obvious faults, like a dead short both ways on each junction or across the Emitter to Collector.

It can connect 2 pins with a very high resistance and with a quite low resistance, depending on the voltage of the corresponding input pin.

Impedance relays are used whenever over-current relays do not provide adequate protection. They function even if the short circuit current is relatively low. The speed of operation is independent of current magnitude.

Impedance relays monitor the impedance between the relay location and the fault. If the impedance falls within the relay setting, the relay will operate. The basic construction for impedance relays on which the principle of operation is easily explained is the balanced beam.

ummmmm... put it in series.

Low pass filters are used for various purposes in different areas.

[1/(1+Ab)] is the expression for sensitivity...

No, the flux capacitor is at this moment in the realms of Science fiction as far as we know.

2(frequency deviation+signal frequency)

A capacitor consists of two plates separated from one another by an insulator. These plates are normally thin foil and can be sandwiched around a very thin insulator and wrapped into a small package. Since there is an insulator between the plates, DC connected to the two plates cannot flow as long as you do not exceed the breakdown voltage of the insulator. AC current is a different story. Because the insulator is very thin and the effective plate area is relatively large, a negative charge building up on one plate causes electrons to be repelled from the opposite plate, and as the charge on the first plate reverses and becomes positive, the electrons in the opposite plate are attracted back again. This results in a matching alternating current flow on the opposite side of the capacitor.

actually what happens, capacitor provides a reactance to current.

Xc= 1/ (2*pi*f*c) ,where pi=3.14, f=frequency , c=capacitance vaue

as dc current is independent of frequency so Xc becomes infinite so dc current gets infinite resistance. so it is blocked

Not exactly. However flip flops of all types were originally called trigger circuits or simply triggers.

115 is the RMS voltage. The actual voltage is a sine wave from -167 to +167 relative to ground. RMS stands for root-mean-square, and it a way of saying that 155 Volts of DC would do the same work on the same sized load.

There can be up to 3 phases, and they are the sine wave, shifted by a part of the curve. In most houses, there are 2 phases, and the voltage to ground for each is 110 to 120 V RMS. The voltage between the 2 is 230-240VRMS.

3 phase gets very complex. Each phase is 115 to ground or neutral. 3 PHASE 115V AC EACH PHASE IS 120 DEGRES PHASE SHIFTED THE EFFECTIVE VALUE IS .639 X 115 THE PEAK VALUE OF PHASE IS 1.41X RMS VALUE.