SKILL

Find the value of Resistor using Color code

T.P.O.Given: Electronic labCues : When assigned by a trainer Who: The instructor will be able toWhat: Find value of ResistanceWithin: 5 minutes How well: The value of resistor should be: 5% of Exact value

Enabling Objectives Define ResistorList out values of Different colorCalculate value of resistor using formulaDiscriminate the resistor from other electronic component

Resistor

ObjectivesAt the end of the session,participants will be able to: define ResistorDiscriminate the resistor from other electronic component

Definition Aresistoris apassivetwo-terminalelectrical componentthat implementselectrical resistanceas a circuit element.Example: carbon film resistor, wire-wound resistor, Thick and thin film resistor, Metal oxide film and Variable resistors. All Resistor have following four features in common1. Have some measurable value2. Used in electronic circuit3. Opposes flow of Current.4. Has two ends or terminals

Discriminating CharacteristicsAll Resistance have:Fixed or variable resistance value andAt least two terminal

Irrelevant characteristics Value of resistanceColourBuilt materialShapeSize

Examples

Carbon film resistor

Exposed carbon film resistor

Surface mounted resistor

Cemented wire-wound resistor

Voltage dependent resistor

Variable ResistorsRhoestatTrimmer potentiometers

Damaged carbon film resistor

Non Examples

Capacitors

Inductor

Diode

transistor

Analogies

Discrimination Test

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