Resistor
Resistor is a passive two terminal electrical component that implements electrical resistance as a circuit element.
In electronics circuits , resistor are used to reduce current flow , adjust signal levels , to divide voltages , bias active elements , and terminate transmission lines , among other uses.
High-power resistors that can dissipate many watts of electrical power as heat may be as part of motor controls , in power distribution systems , or as test loads for generators .
Fixed resistors have resistances that only change slightly with temperature, time or operating voltage. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity.
- resistor value can be checked by using color code
- and also can be checked by using multi meter
- for begineers multi meter is very useful
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