Question

Diferences between carbon resistor and wire wound resistor

Answer 1

Carbon composition resistors consist of a solid cylindrical resistive element with embedded wire leads or metal end caps to which the lead wires are attached. The body of the resistor is protected with paint or plastic.
Wirewound resistors are commonly made by winding a metal wire, usually  nichrome , around a ceramic, plastic or fiberglass core. The ends of the wire are soldered or welded to two caps or rings, attached to the ends of the core.

Answer 2

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Carbon composition Resistor :

1) A typical carbon composition resistor consist of mixture of carbon powder of Graphite and some insulating material moulded into a cylindrical shape.

2) Copper leads are provided to each end of cylindrical for connections.

3)Band of colors are used to identify resistance value.

4) At outer layer of insulating material gives mechanical and electrical protection .

Wire wound Resistor :

1) Wire wound resistor consists of wire and nickel constant or manganin would on ceramic tube.The tube is covered with Porcelain

2)These are available in range of 1Ω to 100Ω.

3) Power rating ranges from 3watt to 200watts.

4)They usually have tolerance value 1% to 10%. They have low temperature co efficient of resistance.

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