Electronics Engineering

A secondary instrument is a instrument whose sound is in comparison to the main instrument. It also can be a back up instrument.

the same current flows through both light bulbs

It doesn't. It can produce any waveform if you feed the integral of the desired waveform into the differentiator's input.

It means electricity power

i will tell when i start the company

The Fourier series can be used to represent any periodic signal using a summation of sines and cosines of different frequencies and amplitudes. Since sines and cosines are periodic, they must form another periodic signal. Thus, the Fourier series is period in nature. The Fourier series is expanded then, to the complex plane, and can be applied to non-periodic signals. This gave rise to the Fourier transform, which represents a signal in the frequency-domain. See links.

A vacuum tube voltmeter (VTVM) is just the "old school" version of the newer (cheaper, more accurate and easier to use) digital multimeter (DMM). It is used to measure voltage (AC and DC), resistance, and (usually) current flow. It may have some other functions. For the most part, these meters (the VTVMs) used an electromechanical meter movement (expensive, shock sensitive, sometimes hard t read/interpret) in place of the display of the DMM. And they have some disadvantages over the DMM, as mentioned here and there. (There are a couple of things the old VTVM will do that the DMM has difficulty doing, but the modern DMM is a better meter for almost any application.) The need to make measurements, and, hence, the need for the meter is to support understanding and assessment of electrical "stuff" that needs to be looked at, usually to see why it isn't working properly. The meters are used by builders of electronic and electrical devices, and by the curious who wish to investigate the physics of basic electronics and electricity.

Yes.

For sourcing output, the relay coil is wired to (common or ground) and the output terminal.

For sinking output, the relay is wired to (voltage supply or hot) and the output terminal.

These are the Key characteristic specification of a Bipolar Junction transistor

Vceb Breakdown voltage

Vcesat Saturation voltage

Vbe Sat

Maxximum Forward current

Leakage Current

Power dissipation

Thermal resistance theta-JC and theta-JA

Hfe

Polarity NPN or PNP

Frequency

A temperature transmitter is any remote device that measures temperature, then transmits the reading(s) to a central base station where it will be read and/or recorded.

Temperature transmitters can be either wired or wireless. The wireless ones are usually the most convenient to use.

A: the resistance should be decreased to 1/2 its value for half scale reading or use any ratio [ decrease] to obtain a correct reading.

Both courses are equally competent. If a fab city is available in your country then you got more chances of getting a job in your region in VLSI domain. The front end verification part of VLSI needs only a PC. Hence one can choose it. Embedded is all about making some useful goods from the available ICs. Hence it has got more jobs.

relationship between vlr and hlr

In 1957 Formula One Grand Prix was held at the Pescara Circuit in Italy which was 25.8 km long. The current circuit in the 2009 season is Spa-Francorchamps which is 7.004km long

I believe hard switching is fast on/off times with inductive loads. The fast rise and fall may create voltage spikes.

The absolute frequency is the total amount of occurances of one variable. The relative frequency is the absolute frequency divided by the total amount of occurances of ALL variables.

A crystal detector is a diode, often used in non-powered radio receivers. It conducts at a much lower voltage than a typical silicon diode, making it easier to generate the signal amplitude required from the tuning circuit.

To reduce % error, you may-

1. Take an average over many observations.

2. Use the correct bridge for various measurements of resistance.(see variants of the wheatstone bridge)

0.287. I hope this is an academic question and not something you're thinking of using in a circuit; three more diodes are cheaper than the kind of filter you'll need to clean up the output of a half-wave rectifier - AND you throw away half the voltage the transformer is putting out!

Why n and p type semiconductors are electrically neutral

No object can vibrate at the wavelength of light. wavelength of light depends on the intensity of light and electron movements.

The tool designed specifically to test DC current from a Molex connector is called a Power Supply Tester.

without knowing load, cannot say