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What is the advantage of film resistors over carbon resister?
Film resistors have lower noise than carbon resistors.
How many types of potentiometer?
There are basically two types of resistors.-Fixed resistors-Variable resistorsFIXED TYPE:Fixed resistors are classified into 4 types based on various factors like manufacturing style,resistance range,power rating etc.The four types of fixed resistors are1)Carbon composition2)Carbon film3)Metal film(again classified into thick film resistors and thin film resistors)4)Wire wound-which consists of power style type and precision style typeVARIABLE TYPE:They are used in electronic circuits to adjust the value of voltages and currents.Ex. They are used in televisions as volume control,brightness control etc. There are three types of variable resistors.They are1)Potentiometer-classified into carbon potentiometer and wire wound potentiometer2)Rheostat3)TrimmerWire-wound, carbon compound, metal strip, and in modern times, the silicon transistors in linear region are used as resistors
What are specifications of resistor?
The resistance, the precision of that value, the thermal or electrical environment, the style of indicating these values. There are wire-wound resistors, cracked carbon resistors, carbon resistors and so on.
What is wirewood resistor?
Your close, It's called a Wire Wound resistor. There are several types of resistors in use for electronics, the type is determined by it's construction.A Carbon Comp. resistor is made up of .... you guessed it, carbon composition material which resists the flow of electrons, like blowing through different sized screens.Film resistors work the same way, but they use a semiconducting film instead of a formed solid material.Wire Wound resistors are actually 1 solid core wire wound around a ceramic rod.In audio applications, a wire wound is the least detrimental to the sound, then film and composition. Wire wounds are the most expensive and get very large with high wattage values.Here's a good link: http:/wwwzperiodzwelwynzhyphenzttzperiodzcozperiodzuk/pdf/application_notes/CCR_AN_Azperiodzpdf
How do carbon resistors differ from wirewound resistor?
the power is more evenly distributed in a carbon rod than a wire hi resistance wire wound can have 100s of feet of very fine wire very prone to heat failure solid carbon distributes the heat over the entire volume of the carbon carbon resistors are far better with higher voltages and resistances
What is the advantage of film resistors over carbon resister?
Film resistors have lower noise than carbon resistors.
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.
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.
Most common failure in a resistor?
This depends on the type of resistor. Carbon composition and metal film resistors typically will burn open, carbon film types can short.
What do carbon film resistors do?
make stuff
What are the types of resistors its application and uses?
This seems like a question from an electrical course, and is probably best answered by your course materials. It's your test question, not ours, and there won't always be someone to ask for the answer. Earn your diploma.
What are the different kinds of resistor?
There are various forms of resistors used for electronic circuits. You can divide it in mainly two basic types:Fixed Resistors: The resistors that come with two wires are listed in this resistor type. These kinds of resistors do not allow you to change the resistance.Variable Resistors: These types of resistors allow you to change the resistance using the resistance using the knob.Some other types or resistors are as following:Carbon Film ResistorMetal Oxide Film ResistorPrecision Metal Film ResistorWire Wound Resistor (WWR)Power Film ResistorPrecision Wire Wound ResistorHigh Power Wire Wound ResistorPhotocellLight Dependant Resistor (LDR)Voltage Dependant Resistor (VDR)
What are the kind of resistor?
There are various forms of resistors used for electronic circuits. You can divide it in mainly two basic types:Fixed Resistors: The resistors that come with two wires are listed in this resistor type. These kinds of resistors do not allow you to change the resistance.Variable Resistors: These types of resistors allow you to change the resistance using the resistance using the knob.Some other types or resistors are as following:Carbon Film ResistorMetal Oxide Film ResistorPrecision Metal Film ResistorWire Wound Resistor (WWR)Power Film ResistorPrecision Wire Wound ResistorHigh Power Wire Wound ResistorPhotocellLight Dependant Resistor (LDR)Voltage Dependant Resistor (VDR)
What are those materials of resistors?
most of the resistors commonly used are carbon resistors
How many types of potentiometer?
There are basically two types of resistors.-Fixed resistors-Variable resistorsFIXED TYPE:Fixed resistors are classified into 4 types based on various factors like manufacturing style,resistance range,power rating etc.The four types of fixed resistors are1)Carbon composition2)Carbon film3)Metal film(again classified into thick film resistors and thin film resistors)4)Wire wound-which consists of power style type and precision style typeVARIABLE TYPE:They are used in electronic circuits to adjust the value of voltages and currents.Ex. They are used in televisions as volume control,brightness control etc. There are three types of variable resistors.They are1)Potentiometer-classified into carbon potentiometer and wire wound potentiometer2)Rheostat3)TrimmerWire-wound, carbon compound, metal strip, and in modern times, the silicon transistors in linear region are used as resistors
What is a carbon film resistor?
It's exactly what is says. A resistor made of a film of carbon deposited on a substrate. Cuts are made in the film to allow generation of different resistance values. ----------- A spiral is used to increase the length and decrease the width of the film, which increases the resistance. Varying shapes, coupled with the resistivity of carbon, (ranging from 9 to 40 µΩm) can make for a variety of resistances. Carbon film resistors feature a power rating range of 1/6 W to 5 W at 70 degree celcius. The resistance ranges from 1 ohm to 10M ohm. The carbon film resistor features an operating temperature of -55 to degree celcius to 155 degree celcius. It has 200 to 600 volts maximum working voltage range. Thick film resistors became popular during the 1970s, and most SMD resistors today are of this type. The principal difference between "thin film" and "thick film resistors" isn't necessarily the "thickness" of the film, but rather, how the film is applied to the cylinder (axial resistors) or the surface (SMD resistors). In thick film resistors the "film" is applied using traditional screen-printing technology. Thin film resistors are made by sputtering the resistive material onto the surface of the resistor. Sputtering is a method used in vacuum deposition. The thin film is then etched in a similar manner to the old (subtractive) process for making printed circuit boards: ie the surface is coated with a photo-sensitive material, then covered by a film, irradiated with ultraviolet light, and then the exposed photo-sensitive coating, and underlying thin film, are etched away. Thin film resistors, like their thick film counterparts, are then usually trimmed to an accurate value by abrasive or laser trimming. Because the time during which the sputtering is performed can be controlled, the thickness of the film of a thin-film resistor can be accurately controlled. The type of the material is also usually different consisting of one or more ceramic (cermet) conductors such as tantalum nitride (TaN), ruthenium dioxide (RuO2), lead oxide (PbO), bismuth ruthenate (Bi2Ru2O7), nickel chromium (NiCr), and/or bismuth iridate (Bi2Ir2O7). By contrast, thick film resistors may use the same conductive ceramics, but they are mixed with sintered (powdered) glass and some kind of liquid so that the composite can be screen-printed. This composite of glass and conductive ceramic (cermet) material is then fused (baked) in an oven at about 850 °C. Traditionally thick film resistors had tolerances of 5%, but in the last few decades, standard tolerances have improved to 2% and 1%. But beware, temperature coefficients of thick film resistors are typically ±200 or ±250 ppm/K, depending on the resistance. Thus a 40 kelvin (70° F) temperature change can add another 1% variation to a 1% resistor. Thin film resistors are usually specified with tolerances of 0.1, 0.2, 0.5, and 1%, and with temperature coefficients of 5 to 25 ppm/K. They are usually far more expensive than their thick film cousins. Note, though, that SMD thin film resistors, with 0.5% tolerances, and with 25 ppm/K temperature coefficients, when bought in full size reel quantities, are about twice the cost of a 1%, 250 ppm/K thick film resistors.
Why is carbon a good conductor of electricity?
No, carbon is a common element used in resistors in electronics.
