Electronics Engineering

Both. This is synonymous to asking "Is hydrogen an atom or a molecule?"

An easy question for me. However you should have read MEMS (Micro electromechanical system) to know about nano electro mechanical system.. The concept lies similar to mems wherein one uses mechanical and electrical properties of matter to aid in technological advancements at the microscale ie at 10^-6 m ...

NEMS goes further down the scale at 10^-9 m ..

Logamp into an antilogamp

RMS value is defined as "The amount of ac supply required to make same heat effect in resistor , which is made by dc current, in that resistor"

You can use an npn or a pnp bjt in a common emitter amplifier circuit. The decision of which one to use is based on whether you want the collector and base to be more positive (npn) or more negative (pnp) than the emitter.

An ammeter is always connected in series in the circuit.

Ultrasonic sound is of a frequency that is above our hearing (>20kHz).

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The question asks for applications.

They are numerous but include cleaning (by cavitation in a liquid in which the work-piece is suspended), certain types of welding / soldering, crack detection in welds, encouraging certain chemical or physical reactions...

Medically, ultrasound is used for diagnostic imaging such as of the foetus, and the destruction of "stones".

Yes you can, in fact I almost guaruntee you did to write the question - the RAM in your computer is likely DRAM, or dynamic random access memory, which uses capacitors to store bits. The problem with using capacitors is there is always some leakage current flow, which results in slowly draining the capacitor's voltage. To prevent the loss of data, DRAM continuously "refreshes" itself by measuring whether the capacitor is charge or not, and fully charging it if it is considered a logical '1'. The capacitor's voltage will again slowly drain off until the next refresh cycle.

The main benefit of this type of memory over more static, gate based memory is it is very cheap, and easy to manufacture.

The answer below this is not correct, a transformer can only be used on AC not DC. So the statement, "A transformer is a device used to increase or decrease DC voltage" is false

The above comment relates to an entry which was obviously deleted.

However, the above comment is also false. The ignition coil in of a petrol engine is a transformer, a pulse transformer. It's d.c. which passes through the primary, not a.c.

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A: this is a passive component as opposed to a device that is active answer is yes it does that but more importantly it isolates and match in/out impedance's

In natural frequencies the output of the system will be less than the maximum level. In the resonance frequency the output of the system will be the maximum level.

Transmit RF frequency subtract to the Receive frequency

1. construction is very simple.

2. cost of the transducer is low.

3. Has very high sensitivity.

The purpose of the fast link pulse (FLP) burst is to "advertise" one computer's capabilities to another computer before a link is established between them. The FLP burst sends information to the other computer telling it, for example, how fast it is. The other computer then checks to see if this is an upgrade and, if it is, decides to use it when a link is established. The computer sending out the FLP then clocks itself at the same speed as the normal link pulse of the other computer, establishing a link with it. This process is called autonegotiation.

That might refer to a lightning.

It's the product of the resistance of that resistive load and the current passing through it.

What Phone have you got you can get apps that will do that.

Yes, the are different names for the same thing.

how am i suposed to answer it if i am asking wat it is

The heated particles will move into the space were the bubbles are and stay there as they cannot escape for a bit. This will mean that the cup will stay warm as it will be sourrounded by captured heat energy.

birthday party is related to "gleeful" as funeral is related to somber

There are many different ways to program microcontrollers. In fact, the question can even have two meanings:

• how do you write software for a microcontroller?

• how do you store your software as program code inside the microcontroller's memory?

Step one is to learn the features of the controller by examining the datasheet. A microcontroller is usually a nearly-complete system in itself. Peripherals in the hardware perform (or help the software perform) specific tasks. These are usually accessed with internal registers available to the CPU.

Next, make sure the design is achievable using the chosen microcontroller. If it is, design the software to accomplish the goal. This can be as simple as a procedural sequence of commands, or as complex as creating a real-time operating system (RTOS) capable of running multiple tasks under tight timing constraints.

Write the code in the chosen language. The CPU of a microcontroller, or any digital CPU, only understands its own language, "machine language." This is simply a sequence of bits (arranged as bytes and words) that drive the internal state machines in the CPU. A step above this is assembly language, which is usually as close to machine language as programmers get. Programmers use mnemonics in place of specific bit sequences, and provide the necessary parameters to create each machine language command. I don't know of any modern microcontroller that does not at least have an assembler. Above that are compiled languages, such as C. These take programming abstractions one more step, allowing for a single line of code to correspond to much more than one machine language step. At this level, function libraries are used to provide reusable code with different parameters. Interpreters are occasionally used in microcontrollers also.

Once the code has been created, it will need to be stored where the microcontroller expects it. Many modern microcontrollers are flash-based. This means that the software is stored in flash memory inside the microcontroller IC. Some are still EPROM-based, where the memory can be written electronically but must be erased by exposing the silicon die of the IC to ultraviolet light. Others may have no internal program memory and rely on external flash or EPROM. Some even have bootloaders, where a given set of code starts up and looks for the actual program somewhere off-chip (in memory ICs) or even off-board (transmitted over a serial communications link).

Flash-based microcontrollers are usually "in-system programmable." This means that you can connect a device to a computer and to the microcontroller board, and download code to the microcontroller. The process usually involves sending multiple short segments of code to the microcontroller, which writes that segment to its program storage memory. Then the microcontroller is reset and it boots from the new code. The device and the computer software to download code is often provided by the manufacturer of the microcontroller, or other third-party providers.

This is relative to the purpose or application. 1 mega ohm may be considered "low resistance" when testing insulation levels; when testing a cable, 1 ohm may be too much. When testing substation ground grids, I believe 1 ohm is the maximum allowable value in some countries.

One 150 watt inverter reports 0.2 Amps (=approx 2.4watts)

Another inverter (180 watts?) reported 0.4 Amps

If you find a fairly complete spec sheet, it may tell you the Amps or Watts that it uses under "No Load".

I'm the originator of the question, and I discovered the "additional" specs.