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To load a circuit to a specific resistance value. This is useful in impedance matching networks, power transmission, telecommunications, etc.
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∙ 13y ago
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Can resistors function the same in AC circuits as in DC circuits?
Yes, they both can add a load to a circuit.
Why PT Burden is always higher than CT Burden?
PTs are high voltage, low current transformers and so need a relatively high impedance (or burden) load to function accurately. CTs are high current, low voltage (if not open circuited!) transformers and so need a very low impedance load to function accurately.
What are those materials of resistors?
most of the resistors commonly used are carbon resistors
What is resistor function?
In an electronic circuit power supply voltage is generally fixed. Resistors is a current limiter for correct devices polarization.
What would happen to the power dissipated in the voltage divider?
'Power dissipation' in a voltage divider describes the rate at which energy is transferred from the resistors to the surrounding atmosphere through heat transfer, due to the work done on the resistors by the current flowing through them. If the work done on the resistors causes their temperature to increase faster than heat transfer takes place (a function of the surface area of the resistors), then they will overheat and, possibly, burn out.
Is potentiometer and Thermistor are variable resistors. How please explain?
A: A potentiometer is a manual device to change the resistance A thermistor changes as a function of environment temperature
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.
