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In the early 70s, making large resistors was expensive in silicon area. The diffusion used to make the bases of NPN transistors had the highest resistance per silicon area. When making NPN transistors, the emitter is diffused over the top of a base region. The resistance in this sub-surface base region which is "pinched" between an N doped epi collector below it and a N doped emitter region above it can have 10 times the normal base resistance. It was often used in non critical applications to save on silicon die size.
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What are those materials of resistors?
most of the resistors commonly used are carbon resistors
What is the present tense pinch?
I pinch, you pinch, he/she/it pinches We pinch, you-all pinch, they pinch
What part of speech is pinch?
To pinch is a verb. "Pinch" as in the phrase "in a pinch" or as in "a pinch of salt", then pinch would be a noun.
What is carbon composition resistors?
Carbon composition resistors are resistors that are made with carbon or graphite mixed with a binding material. It's one type of resistors among several. There are also carbon-film resistors and metal-film resistors. Out of all the resistors, carbon-film resistors have the greatest tolerances and changes to temperature fluctations. Thus, they are used in applications where precision isn't critical and where temperature will not change drastically.
How do you find the resistance of a series circuit with n identical resistors?
The total resistance of resistors in series is simply the sum of the resistance values of those resistors. If the resistors are identical, then you can multiply the resistance of one of them by the number of resistors in the circuit.
Who invented resistors?
Otis f.boykin invented resistors
What is the advantage of film resistors over carbon resister?
Film resistors have lower noise than carbon resistors.
Two resistors are connected in parallel to a battery What must the votlage across these two resistors?
Both resistors will have the voltage of the battery.
What are Resistors wired in series?
Resistors are wired in series when they are connected in a line. The current flows through the resistors one after the other.
What is carbon composition?
Carbon composition resistors are resistors that are made with carbon or graphite mixed with a binding material. It's one type of resistors among several. There are also carbon-film resistors and metal-film resistors. Out of all the resistors, carbon-film resistors have the greatest tolerances and changes to temperature fluctations. Thus, they are used in applications where precision isn't critical and where temperature will not change drastically.
What are resistors that produce a straight line graph called?
Linear resistors
What are resistors and why are they used?
Resistors are like funnels, they restrict the flow of current.
