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Electronics Engineering
Electronics Engineering is a branch of engineering that deals with practical applications of electronic components, devices, systems, or equipment. Electronics are devices that operate on low voltage sources, as in electron tubes, transistors, integrated circuits, and printed circuit boards and use electricity as part of its driving force.
24,372 Questions
What are the applications of a capacitive transducer?
Capacitive sensors are used mainly to detect proximity, usually that of people. The operating principle is that the capacitance of the capacitor varies as material comes between the two plates of the capacitor, and you can determine the presence of something via the measurement of the capacitance.
How do you test a closed circuit?
we can make an open circuit by disconnecting the wire or break the circuit and a closed circuit is made by connecting all wires with the contents of the circuits.
Which is preferred for measuring emf of a cell avoltmeter or potentiometer?
A voltmeter is used to measure voltage.
A potentiometer is used to vary the amount of resistance in a circuit - it has nothing to do with measuring.
A photoconductor is something whose resistance decreases when it's exposure to light increases. As for photography, the only link I know of is that they are used in light meters.
How much do electrical engineers make a year?
National Mean Annual Salary: $66320 National Median Hourly Wage: $31.89
Actually, My Dad is an Electrical Engineer, and he makes $164,000 a year!
AnswerElectrical Engineers design, develop, test, plan,and improve electrical equipment.Engineers should be creative, curious, logical, and detail-oriented. you will need a bachelor's degree in electrical engineering, computer engineering, or electronics.some people then move on to earn a master's degree.once schooling is done, you usually spend 12-24 months in training at your job. When engineers gain experience and knowledge, they may work more independently, making decisions, developing design, and solving problems. With Further experience, you might become a technical specialist, superviser, or even an engineering manager.Many electrical engineers work normally 40 hours a week. The median annual earning for an electrical engineer is $64,910.(the specific salary of an electrical engineer is determined by their years of experience, the size of their employer, and their level of skill/area of expertise).Our society depends upon electrical engineers for computer chips, microprocessors, radar systems, electric utilities, machinery controls, lighting, aerospace navigation systems, wiring in buildings and wiring in autos. Everything that uses, produces or distributes electricity is dependent upon electrical engineers for their development and maintenance.The pay range depends on the particular field of electrical engineering they are working in and what area of the country. East & West coast locations tend to make more. Less in the south and mid-west. Engineers who design products or do research and development tend to make more than electrical engineers working in manufacturing or quality. But it's all highly variable.
About $40K to $60K For an entry level engineer with a 4 yr college degree.
A Senior engineer with a masters degree in electrical engineering and many years of experience can make somewhere in the range of $80k to $100K.
A very senior engineer who is considered to be a techical specialist or an electrical engineering manager who leads a team of engineeris can make between $100K to $170K per year.
EDN magazine publishes a yearly salary survey. Check them out at http://www.edn.com/article/CA6497229.html?spacedesc=readersChoice?text=salary+survey
What are the two kinds of electrical circuit?
There are four types of circuit: series, parallel, series-parallel, and complex.
What is priming of centrifugal pump?
Priming of any pump is the same - it means filling the pump with liquid to get it to pump because the pump will not fill itself with liquid from being dry (it won't self-prime).
any factor which produce motion in a body or tends to move the body..
Not only move the body but also make it change its direction or even its geometry. For instance, if you trip while running, you'll fall, and so your direction will be changed. If you press too hard, you'll smash an egg, so you've just altered the egg's geometry. These are two basic examples.
What process does thyroxin control?
Thyroxine is a hormone, or chemical messenger, that is secreted by the thyroid gland to help regulate metabolic processes and influence physical development of the body.
What is another name for a series -parallel circuit?
series other name current series and parallel is voltage
Can silver be used to make electrical wires?
Silver is used as a low resistance conductive material. Contactors and relays contact points are made of copper and are silver plated to obtain the lowest resistance between the moving contact faces.
Why does the terminal voltage decreases as the load current increases?
A: That will happen anytime the voltage source is not able to provide the power needed for the load. If the load exceed the power available from the source the voltage will be reduced as IR drop from the source
What is the effect of the op amp in the circuit?
So long as you remain with the range of the device (power supply rails less a volt or two), the output of an op-amp will go to what ever value is required to maintain the input stages (bridge) to remain the same. So, the effect on input voltage on output of an op-amp is dependent on the feedback circuit.
How do you calculate KW from Volts?
Kw can be calculated from volts be using the formula
p=(voltage)square/resistance*1000
Why are silicon diodes not suited for low voltage rectifiers?
Silicon diodes ARE used in reverse bias. This is the mode in which they do not conduct, which is the principal role of a diode. When forward biased, a silicon diode will conduct but has a voltage drop of around 0.6v so is not useful for rectifying small voltages (unless used as a perfect diode with an op amp).
Is lightning AC or DC voltage?
Lightning is static electricity. It's a buildup of charge, and it is facilitated by charge separation. In that light, it is DC.
How transistor acts as bidirectional?
its because it only allows current to passy through one direction. They are like diodes
Does a capacitor block ac current dc current or both?
No you can't use DC capacitors in Ac because in DC current , the current flows directly while in AC current, the current flows curved zig-zag. Thus Dc equipment can't mingle with AC as they need Direct flow. So DC capacitors can't be used for AC current...................
AnswerMost capacitors will operate on either DC or AC. The exception is the polarised-type capacitor, which is designed to operate with a DC or an appropriately-biased supply.
Often, a capacitor's rated voltages is specified in terms of DC -for example, '100 V (DC)', so care must be exercised if it is to be used with AC. This is because we always measure AC voltages as root-mean-square (rms) values, not as peak values. For example, '100 V (AC)' actually peaks at 141 V*. So, applying 100 V (AC) to a capacitor rated at 100 V (DC) may cause its dielectric to fail. In this example, the maximum allowable AC voltage must be 70.7 V, which peaks at 100 V.
(*To explain: Vrms = 0.707 Vmax )
If you have 500 watts at 4 ohms how many watts do you have at 8 ohms?
250 watts approximately
I assume you have a constant voltage supply. According to P=V^2/R => P*R=V^2, you have a 44.7 volt supply. If you change Resistance to 8 ohms, P=44.7^2/8 => P=250 watts.
Do railway tracks get magnetised when trains run on tracks?
No, however some trains have a magnetized wheel to help grip the track.
*Added -
Electric trains do result in short term magnetizing of the train tracks. This can be seen on sharp curves where tiny rail slivers cling along in a magnetic pattern. In the US, trains do not have magnetized wheels, but rapid trainsit systems can include a track brake that uses a magnet to provide much faster braking than the wheels alone.
Can kirchoff's voltage law be used to determine voltage drop?
Yes. Kirchoff's Voltage Law states that the signed sum of the voltage drops going around a series circuit is zero. Thus, if you know all but one, you can figure it out. You simply add what you know up, and what is left is the last drop.
Don't forget to be consistent in your use of signs. If, for instance, you show a voltage or current source as a voltage rise, then it must be considered to be a negative voltage drop. Or vice versa, as the case may be.
How it work a toaster circuit?
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Why do you measure emf with a potentiometer not with voltmeter?
EMF (E''electromotive Force'') is another term for Volts, hence the E in electronic formulas and EMF is measured with a volt meter. A potentiometer is not a meter at all, it is a variable resistor
