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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 is Rocket speed per sec to escape from earth gravity?
the rocket speed required to escape out of the earth's gravity is known as escape velocity which is numerically equal to 11.2 km per sec.
What is a ventricular shunt used for?
Ventricular shunt relieves hydrocephalus, a condition in which the ventricles are enlarged.
Why is the current lower when the voltage is higher?
This depends on the circuitry you apply voltage to.
In a circuitry with a fixed resistance of 1 Ohm, 1 Volt would then generate 1 Ampere of Current.
In the same circuitry, 2 Volt would generate 2 Ampere of Current.
Increased voltage will, given the same circumstances, increase the current.
In other words, your question must take something not defined into consideration, or the question may be wrong.
In an attempt to explain why it often works this way I have to look away from fixed circuitries and give real life examples.
By increasing the voltage, the effect of the resistance in an electrical cable is lowered.
In other words, a thinner cable can carry the same "juice" of 360 Volt as compared with a thicker cable of 220 Volt or an even thicker one running at only 120 Volt.
This makes much sense in the fact that thinner cables are cheaper. In a big house, there is much to gain by having access to higher voltages.
A washingmachine, stove, cooker, tumbledryer, dishwasher... All can be made to utilize high voltage instead of low voltage. The current drained goes down, but the wattage remain the same.
The electricity company benefit from less effect of resistance in the cables. They can give more punch with less.
We can also look at a fixed wattage.
If the wattage drained remains the same no matter the voltage, then the current goes down as the voltage rises.
Scope of electronics engineering in Australia?
for service sector like telecom networking lot of scope is there...for embedded vlsi limited scope
An ideal voltage source will charge an ideal capacitor?
An ideal capacitor is characterized by a single constant value for its capacitance.
What are the known effects of fractal non-linear resonance?
Seperation of atomic structures including but not limited to non biological elements such as stone, rock, even water. It induces a weird sort of decay which literally rearranges atoms at times to form something completely different... different atoms, different structures and different material. In short, everything or any thing melts, moves or explodes at room temperature or at widely various temperatures and pressures. Interesting as it can be,although it is a form of sound, it reacts to other elements as vibrations like heat without being hot. Even better, add magnetism and/or eletricity and you will get a completely different reaction such as levetation, erratic movements and even swift-vertical alignment or stationary rotation of certain materials. Like a phenomenon this is a freak of nature which contradicts most theories. It also can promote, prompt, and sustain an unknown form of self healing within the human body, "regeneration" where damaged cells are some how replaced, not repaired, replaced. Multiple fractal nonlinear resonance devices and frequencies can be applied in multiple directions and yet again, you will get a completely different result. These results are complex and vary greatly depending upon all applied forces such as the number of devices, number of personel present, direction of each device, moisture/ humidity, atmospheric pressure, any additional sounds/pressure waves including speech and independent/external sources such as traffic, amplification vs. de-amplification, state of matter, amount of matter and even the presence and position of what I thought were non relevant items/material that were not a direct target. It is astonishing yet a beautiful reality.
What are the differences between active low and active high SR flip flop?
Hello
The difference between an active low and an active high SR flip-flop is that with the active low SR flip-flop, the system is activated when the inputs to system are zeros while with the active high SR flip-flop, the system is activated when the inputs to the system are ones.
What is best gate coaching in delhi?
There are many educational portals are available in these days who provide best coaching institutes as well as courses if you are looking for best gate coaching institutes in delhi you must check these links maybe you will find the best coaching institutes meri padhai is an education platform provides best coaching institutes to the students.
Why wouldn't copper work in a rheostat?
Copper would not be practical because of its high conductivity. The result of using copper would be that you would need to make very big rheostats to get any useful resistance.
How much voltage is needed for a 100 watt light bulb?
There's not enough information in the question to provide a definite answer. It is like asking "How long does it take to get from point A to point B?" The answer depends on other factors i.e. How far is it and what is your average speed?
How much voltage is needed for a 100 watt light bulb? The answer depends on the design of the bulb. A 12 volt 100 watt bulb requires 12 volts to function at a power level of 100 watts. Likewise, a 120 volt 100 watt bulb requires 120 volts to function at 100 watts. As far as I know, that's about all the answer there is.
Obviously this person is talking about the 100watt light bulbs that you would find in any grocery store across the country. Those require 110 volts. That's what comes out of your wall socket. If you were to travel to Europe you would need a different bulb because they run 220volt electrical lines to their outlets. We measure the electricity running into our homes(or potential energy) by volts and amps. Watts are a measure energy used.
1watt = 1volt x 1amp.
diagram
How is submarine cable constructed?
Submarine cable is constructed in much the same way direct bury cable is made. The major differences involve "what" is done rather than "how" it is done. What is done is that a whole lot of extra armor and waterproof jacketing is added. Check out the information posted by our friends at Wikipedia by using the link. The pictures alone are worth the time.
WHY on making both the inputs high in the AND Gate the output becomes high?
The output of the AND gate is high when both inputs are high because that is the definition of an AND gate. (Ouput is true ONLY WHEN Input A AND Input B are true.)
What are the uses of the burglar alarm?
they help you and your family know whenever someone is trying to break in
If it is difficult for electricity to flow through a component what is it called?
Resistive
Or a resistor
High Impedance
What does the continuity of capacitor voltage mean?
It might mean that the voltage across a capacitor cannot change instantanteously because that would demand an infinite current.
The current in a capacitor is C.dV/dt so with a finite current dV/dt must be finite and therefore the voltage cannot have a discontinuity.
Does a generator produce ac or DC voltage?
NO, generator always generating AC current,when commutator is used,at that time AC is converted in DC.and due to this generator is called dc generator.
Is energy the rate at which work is done?
Power is the rate at which work is done. Power is defined electrically as current times voltage.
There are different types of energy, such as potential energy (or voltage). Just because the energy is there, doesn't mean work is being performed.
AnswerPower is the rate at which work is done or the rate of heat transfer, expressed in watts, which is a special name give to a joule per second.
Work describes energy in transit between one form and another -e.g. a motor does work when it converts electrical energy into kinetic energy.
Heat describes energy in transit between a warmer body to a cooler body.
Work, heat, and energy are all expressed in joules.
Voltage
What is virtual height of antenna?
Since the ionosphere have different types of layers namely D,E and F layers. So when a pulse transmitted from transmitter it get deflected or we can say reflect by these different layers and reaches to the receiver.
Thus the path followed by the pulse is the Actual path.
The distance between the highest point of actual path and the earth surface is called Actual height.
When a short pulse of energy sent vertically upward and traveling with the speed of light would reach taking the same two rays travel time as does the actual pulse reflected from the ionospheric layers. that height is known as Virtual height of an antenna.
