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 center terminal of a variable resistor called?
The center terminal of a variable resister is called a wiper.
When is that the NA ND logic gate can function as a NOT logic gate?
The NAND gate has two or more inputs, and one output. This output is the complement of the AND of all the bits and will only be 0 if all the inputs are 1.
A NOT gate on the other hand has only 1 input, and the output is the complement of this input.
So to make a NAND gate into a NOT gate, we should tie (short, connect to same value) all the inputs of the NAND gate. At the output we would have the complement of the signal given at the tied inputs.
This way we have a NOT gate from a NAND gate.
What is q factor in rlc series circuit?
In a RLC series circuit the Q factor magnify the voltage to the circuit.
What are the advantages of adcock df over loop antenna?
As far as I know ...
The Adcock DF works with signals, which are reflected at the ionosphere and with ground wave signals ... the loop antenna works only wich ground wave signals, not with bounced signals from ionosphere ...
and, by the way, the Doppler DF works also only with ground wave signals ... so for long distance DF at shortwave, the best (and only good) working DF ist the Adcock system ...
sorry about my poor english :)
Dietmar, DL4HAO
What does nuclear radiation have to do with how a smoke detector works?
A weak source of Americium-241 is found in smoke detectors. The Alpha particles, which ionise the air, are emitted from here. This causes the air to conduct electricity and a small current flows.
Why some countries use low voltage but others use high voltage?
You must understand that with higher Voltage you will get lower amounts of current therefore some countries use lower household current applications therefore without diminishing circuit efficiency it is more ideal to up the Voltage
AnswerThe main advantage of using a higher value of a residential voltage is that it enables the use of higher loads.For example, the maximum load for a North American 'receptacle' is 15 x 120 = 1800 W.
The maximum load for a UK 'socket outlet' is 13 x 230 = 2990 W.
Typically, therefore, most UK households use kettles, electric heaters, etc., which are rated around 3 kW -practically double that of the American equivalent.
How do you write delay subroutine in 8085?
; REQUIRED T STATES
; = 10ms/.333us
; = 30030 T STATES
; SO WE CAN SAY VALUE OF COUNT HERE WILL BE HIGH
; THEREFORE TAKING A REGISTER PAIR AS A COUNTER
LXI B, COUNT ; 10T LOWER ADDRESS IN B HIGHER IN C
L1 DCX B ; 6T
MOV A,B ; 4T MOVE LOWER ADDRESS IN A
ORA C ; 4T SEE IF BOTH A AND C ARE ZERO
JNZ L1 ; 10/7T
RET ; 10T
; Td = 10 + COUNT X ( 6 + 4 + 4 + 10) + 10 - 3 = 30030
; 24COUNT = 30030 - 17 = 30013
; COUNT = 1250(DEC) = 04E2(HEX)
Free software to convert hex code into assembly language?
"http://wiki.answers.com/Q/Free_software_to_convert_hex_code_into_assembly_language"
How do you read the resistance of a four-band resistor?
First band has a color representing the first significant figure. Second band has a color representing the second significant figure. By default, the numbers are arranged first.second Third band has a color representing 10 raised to the power of. Fourth band represents the average accuracy of that lot of resistors that are made in that batch, by design and process control. If it is not present, it is ±20% (?) of the marked value. * black = 0 * brown = 1 * red = 2 * orange = 3 * yellow = 4 * green = 5 * blue = 6 * violet = 7 * grey = 8 * white = 9 * silver means ±10%, or -2 in third position * gold means ±5%, or -1 in third position So red, black, orange, gold... is a 2000 (or 2.0k) ohm resistor, with a 5% accuracy. A five band resistor has an additional significant figure between bands "2" and "3" as described above. Precision resistors (1% accuracy or better) are always printed values, with "203" also being a 2.0k ohm resistor.
In a distortion factor meter the filter at the front end is used to suppress?
fundamental components Bismita
How do you measure conductivity of electrolytes?
i have to measure the conductivity of an electrolyte membrane made of polymer how can i do it using lab technique
Whats the permissible voltage drop in a 240V system?
You shouldn't really have much voltage "drop". If you do, it usually means that there is a poor connection somewhere along your service line or inside wiring. Any significant amount of voltage drop can mean that you are at risk of a fire. On the other hand, line voltage into a house may not actually be 240 VAC. Measure the ACTUAL voltage with everything turned off, then see where it goes when you start turning things back on. The difference between the supplied voltage and the load voltage is the voltage "drop".
Yes. There should be no electronic communication in the classroom.
Elearning is an abbreviation of electronic learning which refers to a method of learning that uses computer to connects you to the web. It can be paid or free depending on what type of learning you want. There are different forms of elearning from as simple as getting ideas from various websites to getting certifications for training or continuing education which are mostly paid.
For the Proper operation of NMOS Transistor Substrate and Source are connected to the Lower potential, If we are applying a positive Gate voltage with respected to Source Similarly The gate voltage is positive to Substrate Hence due to the body voltage, electrons are accumulated under the oxide layer and forming a channel for conduction.
What is Frequency shift keying?
FSK refers to a communications protocol in which different values of encoded (binary) information are signaled by modulating the frequency, and the start and stop of different bits are determined by the expected timing of each shift in frequency. If there was no shift, the next digit is the same as the previous digit (0 and 0 or 1 and 1), and if it shifted, then the next digit is the opposite (1 to 0 or 0 to 1).
12/1.5= 8. If I = Current from 1.5 Volt source and I2 = current from 12 V source then
I = I2/8 or said in another way the current from 1.5V device is 1/8 of the current from 12 V device.
How do you measure the power by 3 voltmeter method?
first we connect the 3 volt meter in three loads then we measure the voltage and find the resistance of the loads then put the formula p=v/r
so in this method we get the power by using 3 volt meter ....(prashant)
Why is pure silicon chemically classified as a semiconductor?
because silicon and germanium can use as a both type of material conductor or insulator they found in nature as a non conducting element but we can turn them in to conductor by mixing some impurities and that process is known as damping.
What is the difference between first order low pass filter and second order low pass filter?
in second order filter attenuation to the frequencies in stop band is higher then first order filters.
The reactance of an inductor depends only on its inductance and the frequency.
The voltage and any series components are irrelevant.
Z = j 2 pi f L = j 2 pi (100) (0.5) = 314.16 ohmsreactive
