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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
1. Both ASIC and FPGA are IC's
2. However ASIC Application Specific IC the functionality is Fixed.
3. In SAME FPGA Field Programmable Gate Arrays various different types of Application can be programmed. And that too in the Field.
What is the difference between rectangular and square wave?
Well, in signal processing it means to be the same most of the time. But if someone asks you to distinguish between these two, it merely means in a square wave uptime and downtime of voltage is the same whereas in a rectangular wave uptime is different from the downtime.
What is reduced level excavation?
The ground which lies between the topsoil and earth's crust is known as the subsoil and comprises particles of weathered rock of various shapes and sizes. It is usually necessary to provide a level surface from which construction may take place, and this level may be lower than the top of the subsoil. In such cases, excavation into the subsoil is required to reduce the level of the ground. The volume of subsoil to be excavated, together with the nature of the material, will determine the type of machine and methods to be used.
What is a pure sine wave inverter?
The sine wave is a mathematical function that describes a smooth repetitive oscillation. An Inverter is an electronic device that converts power from one voltage to another.
A pure sine wave inverter is a device that produces a smooth and consistent flow of electricity in the required voltage.
The benefits of a pure sine wave inverter are that the device requiring the electricity from the inverter will not suffer from surges and lows in power output and as such the connected device will perform a lot better.
Design and implementation of a buffer circuit using operational amplifier?
design and implementation of a buffer circuit using operational amplifier
The ability of conductor to induce voltage in itself when the current changes?
The ability of conductor to induce voltage in itself when the current changes is called inductive reactance.
Draw logic diagram of two to four line decoder using nor gates only with enable input?
draw logical diagram 2 to 4 line decoder with nor gates only
Why it is dangerous to supply power to an unloaded series connected DC motor?
Starting torque becomes very high due to which motor can attain very high speed and can damage its body and connected equipments.
Is transistor a current amplifier or voltage amplifier?
depends on the circuit it is used in:
- CE/CS is inverting voltage amplifier
- CC/CD is noninverting current amplifier
- CB/CG is noninverting voltage amplifier
Why you use capacitive filters in rectifier circuits?
In any rectifiers circuits the purpose is to get a DC voltage by giving AC voltage as input.
by connecting capacitors parallally in the circuit it is possible to get pure DC output.capacitor filter only eliminates the ac quantities remainimg in the output waveforms.so that finally we get pure DC for further aplications in electronics circuits.
Convert rms to peak to peak power?
P-P voltage = RMS voltage * 2 * sqrt (2)
Here's an example: house voltage is 120VRMS, which is actually ~169 volts peak - neutral. double this will give peak to peak value.
The applied voltage is 53+28 = 81V.
a memristor is the fourth passive element in the electric circuit joining the resistor,inductor and capacitor , the word memristor is the concatenation of "memory" and "resistance"
State the imitation of ohm's law?
imitation of ohms law is that it can be applied only to linear devices it cannot be allowed to non linear devices...
How do you Recalibrate a vibe eq-300 Digital Scale?
Hold mode button til it says cal. Press mode again, 100 will show on the scale. Put 100 grams (20 nickels) on and it should say pass.
What happens when a signal is sampled below its Nyquist frequency?
Introduces the aliasing effect which eventually would account for information loss...(aliased signals)
In Double Sideband AM (DSB-AM) modulation, two thirds of the power is consumed by the carrier, so 667W would be transmitted at the carrier frequency. The remaining 333W is split equally between the two sidebands, each being mirror images of each other.
Hysteresis
What is downward multiplexing?
Downward multiplexing refers to distributing a single signal across multiple channels.
Why is there a C in the equation for a discharging capacitor?
The C represents the capacitance (in farads) of the capacitor. It is a measure of how much charge a capacitor can hold. This is needed to know how much energy the capacitor is holding.
How can you store a different amount of charge in a capacitor?
Power = V*I
Power = (V) * (C*dV/dt)
To store more / less power / charge, charge the capacitor with a greater / smaller voltage (make sure the cap is rated for at least as much as the voltage you are charging from, though).
Is mega ohms more them k ohms?
Yes, one mega ohm is more than one kilo ohm. Mega means million, kilo means thousand.
What is the difference between frequency division multiplexing and freq division multiple access?
The basic difference between fdm and fdma is that fdm is used in wired system where as fdma is used in wireless communication.
What is the difference between firing and triggering a thyristor?
There is no difference. The terms "firing" and "triggering" both mean exactly the same.
As long as the voltages applied to both the anode and the gate have the correct values and polarities for a particular design of thyristor, "firing" or "triggering" will cause current to switch on between the thyristor's anode and cathode. The current will then continue to flow for as long as the correct source voltage polarity is maintained onto the anode.
Another opinion
If the input signal is given to a thyristor, it is said to be gated. Because of gating pulse the thyristor gets triggered ( cause & effect relationship). Once the thyristor is triggered the charged particles starts moving inside the different layers. A noise is created called "SHOT NOISE", due to the movement of charged particles. Heat energy is dissipated due to this movement of charged particles. Once the thyristor reaches this stage it is said to be fired. Hence, there is a minute difference between these three terms. But all these terms are being used interchangeably.
