Carbon Resistor
What are Carbon Resistors?
- For Electronic used Carbon Resistors are one of the most common types of resistor.
- Carbon resistors come in different physical sizes.
- Power dissipation limits of Carbon Resistors commonly 1 watt down to 1/8 watt.
- Different types of metals and alloys like nichrome, brass, platinum and tungsten are used to produce resistance.
- However, most of these metals have low electrical resistivity, unlike carbon resistor, which makes it difficult to produce high resistances without becoming bulky.
- They are low cost, compact and easy to use.
Parts of a Carbon Resistors :
Different Parts of a Carbon Resistors are -
- Ceramic core
- Nickel cap
- Lead
- Carbon Film
- Protective Lacquer
Uses of Carbon Resistors -
- Circuit Functions - Changing resistance will change the flow of current inside the circuit. For example, this type of resistor is used in controlling the rotation speed of a motor, increase and decrease the volume of an amplifier, etc.
- Dividing Voltage - Connecting the resistors in a series will help to drop the voltage across each resistor equally.
- Heating - When conducting current resistors are generating heat. So resistors are used in Microwave, Electric stove, heater and toaster.
- Frequency and timing
- LEDs and Transistors
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