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
What is the difference between prime rating KVA and standby KVA?
The difference b/w the prime generator & standby generator is that the prime generator is used for 24/7/365, while the standby generators are only used in emergency cases, if we used standby generators for more than 24 hours continuously, then it will be overheated for sure.
Dr Gustave Bucky is the original inventor of the x-Ray grid. He made this in 1913. He was born September 3, 1880.
What is the output voltage of a Kitchenaid Toaster?
There are no volts in a toaster. Depending on your country of residence, your toaster may use 110v or 220v. Here's an easy way to tell.
If you are in Canada or the US, your toaster is the 110 variety.
If you are in Europe, Asia, the Middle East, and a few other countries, your toaster is the 220 variety.
What is the basic difference between electronics and electrical?
I'm not an electrician and someone else can surely give you a better answer than this, but here goes: * Electricity- is the reason why electronics has a function to used by man. -support our appliances.
* Electronics are the things that need electricity to run on. Electronics are things like stereos, graphic equalizers, car stereo amplifiers, the guts of a GPS device, etc., ... it can also refer to the stuff inside these devices like wires, circuit boards, capacitors, resistors, RAM, circuits, etc. Example:
Here's an anology: Imagine one of those old grain mills next to a creek that's powered by the running water. The water would be like the electricity and the gears, wheels, and presses inside would be the electronics.
What is the advantages being aeronautics engineer?
an aeronautical engineer job is very sensitive and needs lot of safety minded conscious. it is a challenging profession in which you interact with master pilots and demands your involvement in such a way when ever snag occurs. you have to be technically sound and refer books all the time to keep your self in touch. since every activity is documented.it is called the life of aircraft. you are responsible for millions of rupees and precious lives.
Give the derivation of Single tuned and double-tuned circuit?
The circuit has one inductor and capacitor connected in such a way that it produce the resonance condition for only one frequency. on the other hand for double tuned circuit it has more number of reactive elements and it has two tuning frequency. The single tuned circuit is of interest when the poles are imaginary, and rest of the two cases are not more interest. w=wn the time it produce the resonance and the damping factor zeta is zero and the circuit is in undamped condition.
This question would be easier to answer if the type of IC was specified.
But generally, there are 3 reasons an IC will not work:
1. It is broken. If a large voltage or shock has been applied to it, or the power hooked up to it in reverse, an IC will usually burn out. This may or may not be accompanied with the release of the Magic Blue Smoke. (http://en.wikipedia.org/wiki/Magic_smoke)
2. Your power supply is dead or not outputting enough voltage. If the voltage supplied is too low for the IC to use, it may not function properly or at all. Check the power supply.
3. The circuit the IC is in is broken. Check all the wires/solder points. Test the IC in a known working circuit.
What is an analog signal and a digital signal?
An analog signal is one which is continuous in time as well as continuous in amplitude . Example : sine wave, cosine wave. An Digital signal is one which is continuous in discrete in time. Example : square waves.
What is the effect of internal resistance of the source to its output voltage?
(a) It reduces the amount of current.
(b) Any current that does pass the resistor will lose some power; this lost power is converted to heat in the resistance.
AnswerInternal resistance acts to reduce the terminal voltage of the voltage source when it supplies a load. This is due to the internal voltage drop caused when the load current passes through the internal resistance of that source. The greater the load, the lower the resulting teminal voltage.
By definition, a voltage source's electromotive force is equal to the sum of the voltage drops, including the internal voltage drop, of the circuit supplied.
How do you differentiate between Harvard and Von Neumann architecture?
There are basically two types of digital computer architectures. The first one is called Von Neumann architecture and later Harvard architecture was adopted for designing digital computers.
Von Neumann Architecture:
- It is named after the mathematician and early computer scientist John Von Neumann.
- The computer has single storage system(memory) for storing data as well as program to be executed.
- Processor needs two clock cycles to complete an instruction.Pipelining the instructions is not possible with this architecture.
- In the first clock cycle the processor gets the instruction from memory and decodes it. In the next clock cycle the required data is taken from memory. For each instruction this cycle repeats and hence needs two cycles to complete an instruction.
- This is a relatively older architecture and was replaced by Harvard architecture.
Harvard Architecture:
- The name is originated from "Harvard Mark I" a relay based old computer.
- The computer has two separate memories for storing data and program.
- Processor can complete an instruction in one cycle if appropriate pipelining strategies are implemented.
- In the first stage of pipeline the instruction to be executed can be taken from program memory.In the second stage of pipeline data is taken from the data memory using the decoded instruction or address.
- Most of the modern computing architectures are based on Harvard architecture.But the number of stages in the pipeline varies from system to system.
What is a micro controler unit MCU?
the basic difference between microprocessors &controllers is that processors consist of three parts ALU ,CONTROL UNIT ,REGISTERS
controllers consist of additional elements likeRAM,ROM
Answerit is a computer on a chipthe basic difference between microprocessors &controllers is that processors consist of three parts ALU ,CONTROL UNIT ,REGISTERS
controllers consist of additional elements likeRAM,ROM
Plasma is a state of matter in the same way that solids, liquids and gases are also states of matter. Plasma is found in fluorescent light bulbs and is used to generate images in a plasma television. So, a television has the same kind of plasma as a light bulb but applied in different ways.
How do you test a capacitor only by using a multimeter and two leads?
You can test a capacitor using a multimeter and two leads by placing the multimeter in ohms mode. It works best with a needle type meter, not a digital meter.
Connect the leads to the capacitor and you will notice that the resistance pulses down, and then settles out at infinity. Reverse the leads, and you will notice the same effect, except that the pulse will be larger because the capacitor got charged in the opposite direction. Go back and forth.
This won't be apparent for very small capacitors because the pulse is too short.
Also, for electrolytic capacitors, they should only be charged in one direction, so you should start by discharging the capacitor and then connecting it in only one direction. Do not reverse the leads in this case. Just discharge and try again to see the effect.
Try this for various capacitors. You will notice that the pulse duration is larger for larger capacitance.
How do you test a microstrip antenna?
A micro-strip antenna works on the principle of resonant cavity (short circuit walls on top and bottom, open circuit walls on the sides).
A resonant cavity stores energy unlike transmission lines or wave guide which transmits electromagnetic energy from one part to another. A R.C is equivalent to LC device at low frequencies.
If the area of one plate of a parallel plate capacitor is increased while keeping the separation between the plates constant, the capacitance of the capacitor will increase. Capacitance is directly proportional to the area of the plates, as described by the formula ( C = \frac{\varepsilon A}{d} ), where ( C ) is capacitance, ( \varepsilon ) is the permittivity of the dielectric material between the plates, ( A ) is the area of the plates, and ( d ) is the separation distance. Thus, a larger plate area allows for greater charge storage, resulting in higher capacitance.
What is a vee used for on the Vee Block?
Vee clock is a kind of equipment used to hold circular workpieces. By clamping the the workpiece on it we can finder centre of the workpiece very easily as jt has a right angle slot in it. It can be also used for check the roundness of a circular job using a dial indicator.
How can i build an Egg Drop involving Only Toothpicks and Glue and without breaking the egg?
You can glue toothpicks in layers around the egg then make a container for the egg to go in.Also, you can put super glue around the egg.I think if you did this your egg would withstand the fall.
What is the differences between electronic and digital textbooks?
eBooks are still "published" by publishing companies; while electronic references are just things like online encyclopedias.
Can we use big capacitor in place of a small one?
For physical size-yes, if voltage rating is the same or more.
For capacitance size-it depends on where the cap is used. In an audio circuit, it may affect frequency response or distortion.
What are the frequency limitations for transistor FET's and BJT's?
As with any solid state device the ratings vary greatly depending on the manufacture. For exact statistic consult the component manufacturer.
For FET:
A gate length of 1µm limits the upper frequency to about 5 GHz, 0.2µm to about 30 GHz.
For BJT:
??? could not find a general limit
Voltmeter is connected in parallel with resistor?
A voltmeter can be connected in parallel with a resistor to show the voltage across the resistor.
How do you change the voltage in the circuit?
If the total amount of energy (work done) is to remain the same, an increase in voltage yields a decrease in current.
P=I X E, where:
P is the power used by the load (the amount of work done) measured in watts
I is the current measured in amps
E is the EMF or voltage measured in volts
So, if we have a 1000W motor, we need to feed it with 8.3 A within a 120V circuit:
(1000W) = (8.3A) X (120V)
If we install the motor within a 240V circuit (assuming the motor is capable) the current is halved:
(1000W) = (4.17A) X (240V)
Bear in mind this doesn't allow for any of the inevitable losses that occur anytime we use or transmit power.
The disadvantage of automatic gain control, attenuating even the weak signal, is overcome by the use of delayed automatic gain control (dagc).
Can you use a 9.6 volt charger to charge a 7.2 volt battery pack?
Check the internet to see if your charger will automatically step down to 7.2V (not likely if the charger is not the same brand as the battery). If it does not step down then it is possible but *** not recommended ***. Overvolting can cause nasty caustic leaking of toxic chemicals from the battery.
