0
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
How do you remove hyperlink underline from weebly www.servicetron.com?
I highlighted the hyperlink and then selected the underline icon and the underline went away. I couldn't believe it was that easy. Tried it after first tearing my hair out. :)
How do you work my handheld game?
This question, cant' be answered, due to the fact we don't know what handheld game system you have. Please, read your instruction manual for help.
since it is not grounded ,it does not accept the flow of current
Does burning a CD erase the music from your computer?
No, it does not. It simply copies the music onto your CD.
How do you know if a security camera is on?
It has a red light. Sometimes. IF you can see it. Which you frequently can't. It is best to assume security cameras are on 24/7, because in almost all cases - they are.
Ohm's Law: Resistance is voltage divided by current
Power Law: Power is current times voltage
Combining them gives: Resistance is voltage squared divided by power
220 volts squared divided by 100 watts = 484 ohms. Note that this is hot resistance. If you measure the bulb in the cold state, you will get an entirely different, smaller, value, due to the extreme temperature coefficient of the filament.
Independently of that, since you ask for peak voltage, that means you are talking about an AC voltage source. We have to assume a sinusoidal waveform, and that the 220 volts was the RMS value. In this case, the peak value is simply the RMS value multiplied by the square root of 2, i.e. 0.707..., making the peak value 311 volts.
What is time constant of capacitor when resistance is zero?
Time constant in an RC filter is resistance times capacitance. With ideal components, if the resistance is zero, then the time constant is zero, not mattter what the capacitance is. In a practical circuit, there is always some resistance in the conductors and in the capacitor so, if the resistance is (close to) zero, the time constant will be (close to) zero.
How are series circuits and parellel circuits alike?
Both take current and energy from the power supply and dissipate power.
When signal amplitude is equal to carrier amplitude then modulation index is?
amplitude modulating signal
How do you access the service menu on lg 42 pj 250 r TV software version is 3.28 please help?
You need a nokia s60v3 handset with infra red..
use psiolc ir remote and download the codes for lg service menu.
then by using 1,2 keys you can access the service menu...
What is the main difference between normal JK flip flop and master slave JK flip flop?
A normal JK flip-flop has the output change state based on the input on the leading edge of clock, while the master-slave variety predetermines the output on the leading edge of clock and then effects the actual change of the trailing edge of clock, making it impervious to race conditions.
What part of an image intensification tube converts the X-ray image into a visible image?
Input Phosphor.
The x-ray image intensifier converts the transmitted x rays into a brightened, visible light image. Within an image intensifier, the input phosphor converts the x-ray photons to light photons, which are then converted to photoelectrons within the photocathode. The electrons are accelerated and focused by a series of electrodes striking the output phosphor, which converts the accelerated electrons into light photons that may be captured by various imaging devices.
What is a closed electric circuit?
An example of a closed electrical circuit would be a battery to a light bulb, the only source of power being the battery and no other input from an outside source.
Like video cameras in a store they would be considered a closed circuit surveillance system so long as the signals stay inside the store and don't leave to a remote location.
Internally two crystal oscillator cycles are used as one single cycle. During one single crystal cycle it is made to logic high and logic low in next cycle so, that 50% duty cycle is maintained.
Is graphene better than silicon?
It is hard to answer to that question. Both materials have advantages and disadvantages. Silicon is semiconductor so you can turn it on and off and you can make numerous field effect transistors or effective solar cells. However, graphene is zero-band-gap semiconductor which is very conductive. It is not conventional semiconductor. People are still trying to introduce a band gap to graphene to yield true semiconducting graphene.
Both materials are legends in the field. Each has advantage. Most likely Silicon will continue to dominate the conventional semiconductor industry and solar cells. However graphene (and graphene derivatives) will be integral part of high frequency devices, diodes, sensors, and some solar cells.
The 80386 was a third generation version of the 8086/8088 microprocessor. The second generation was the 80286, adding protected mode. The 80386 added 32 bit mode, virtual 8086 mode, and flat 32 bit protected mode.
The 80386 fixed the problem of the 80286 where existing object code was not compatible in protected mode because the meaning of the segment registers changed. The 80386 allowed the operating system to run in protected mode while presenting the process with a virtual 8086 environment where the segment registers worked as before. This was a stop-gap measure that worked until the full implementation of a true 32 bit flat memory model operating system and software.
Does the current generates if there is no resistance in the circuit?
You can have current without resistance. You would just have zero voltage drop across that zero resistance.
However, the question is very interesting, because if you really had zero resistance in the entire circuit, it would be impossible to have any voltage at all without generating an infinite current, so the answer in the theoretical case is no, you can have no current, nor voltage, if there is no resistance at any point in the circuit.
Why do you use look ahead carry adder?
You use a look ahead carry adder to reduce the propagation delay effects caused by the ripple carry that would otherwise be used. With ripple carry, each stage is dependent on the preceding stage, and this is cumulative. With look ahead carry, the carries are computed in parallel, speeding up the overall process.
What happen with the brightness of the bulb when one unscrewed in parallel?
Provided that the power supply is reasonably well regulated, the failure
or removal of one device in a parallel circuit has no effect on the others.
What is the current in the secondary coil if current in primary is 5.0A?
It depends on the turns ratio between the primary and the secondary. If the ratio were 10:1, a step-down transformer, for instance, the current in the secondary would be about 50A. If it were 1:10, a step-up transformer, however, the current in the secondary would be about 0.5A.
Answer
The primary current doesn't determine the secondary current. The secondary current is entirely-dependent on the secondary voltage and the impedance of the load. It is this secondary current that the determines the primary current. So you should be asking, "What value of secondary current would result in a primary current of 5.0 A?"
