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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
An absolute phrase is a phrase that when you add the words Was or Were you can get a complete thought out sentence.
Is the open circuit voltage of a solar cell measured under non-illuminating condition?
Well, you should really measure the open-circuit voltage and the short circuit current both under dark and light conditions and then compare them to fully characterize a solar cell.
Measuring the open-circuit voltage means measuring the voltage across the cell when no current is flowing (i.e., with a LARGE resistance as a load on the cell). Measuring the short-circuit current means measuring the current when the voltage across the circuit is essentially zero (i.e., with a VERY SMALL resistance as a load on the cell--thus, "short-circuit" current).
The anode (the cathode is usually marked with a stripe).
Why is resistance less when resistors are join in parallel?
What do you mean? In a parallel circuit, the combined (or effective) resistance is less than any individual resistance.
What is wavelength division multiplexing?
Primarily used in fiberoptics, but generally applicable, WDM is a way of transmitting more data by separating channels by "color". For example, you can transmit one message with blue light and another by yellow light and another by red light. Then you can separate them at the receiver. More specifically, you can use thousands of very narrow wavelengths in a single fiberoptic cable to increase the communication capacity enormously.
A measure of resistance to electricity?
The measurement of resistence to electricity is called Ohms. It was named after Georg Simon Ohm, a German physicist
What is the condition for linear phase response of FIR filter?
an FIR filter has linear phase characteristic, if coefficient symmetry (or antisymmetry) with respect to h(N/2) applies. ex: h(n)={c0,c1,c2,c3,c4,c5,c6}, then the corresponding FIR filter would have linear response if: c0=c6, c1=c5, c2=c4.
What is affect of using a 3 ohm speaker with a 100 Watt amplifier?
Amplifier power and impedance are not related, although a lower impedance speaker will be louder. Most home stereos cannot drive loads below 4 ohms, however, so using this 3 ohm speaker with a home theater may cause the amp to go into protection mode or shut down completely. Check your owner's manual to see what impedance of speaker your receiver can safely drive.
Why LED is used in the circuit diagram explain with reason?
Without seeing the actual diagram no real answer can be given.
LEDs are used to generate light, often as status indicators.
What are the applications of Maxwell bridge?
for a joke - Maxwell Bridge is connecting two sides of the Wabash River.
How are parallel resistors connected?
If you need a resistor of a certain value, and you have no resistors with small enough values,
you can create the one you need by connecting several of those you have in parallel.
The effective net resistance of resistors in parallel is always less than the smallest individual.
And the more resistors you add in parallel, the smaller the net effective resistance becomes.
Generally any current flow above what is considered dangerous?
Generally, any current flow above 10 milliamperes (mA) is considered potentially dangerous to human safety. At this level, it can cause muscle contractions and impair a person's ability to let go of an electrified object. Currents above 100 mA can lead to serious injuries, including ventricular fibrillation, which can be fatal without immediate medical intervention. Always exercise caution around electrical sources to minimize the risk of electric shock.
How do you set a variac to zero volts output?
One should be able turn the variac all the way to one end of its stroke (typically left), so that the brush contacts the windings right where the neutral connection is. If you cannot, perhaps the stops need adjusted, the brush needs re-aligned/replaced, or the windings need cleaned.
Why is it harder to receive FM broadcasts in some areas?
I think it is because you may be too far from the tower broadcasting that station for it to come through clearly.
How do you input float into an array?
#include
using std::cin;
using std::cout;
using std::endl;
int main()
{
int myArraySize = 10;
//array of type float declaration and initialization of all elements to zero
float myArray[myArraySize] = {0.0f};
cout << endl << "Enter element of your array (of type float)..." << endl;
for(int i(0); i < myArraySize; i++)
{
cout << endl << "Enter " << (i + 1) << " element: ";
cin >> myArray[i];
}
cout << endl << "You have entered: " << endl;
for(int i(0); i < myArraySize; i++)
{
cout << (i + 1) << " element: " << myArray[i];
}
system("PAUSE");
return 0;
}
What would be the result when both JK flip flop logic 1?
When the inputs J and k of the JK flip-flop are set to 1, the output toggles.
