Resistors

Emily Charles
Mind Map by Emily Charles, updated more than 1 year ago
Emily Charles
Created by Emily Charles over 4 years ago
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Thermistor resistors and Light Dependent resistors
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Resistors
1 Calculated using OHM'S Law
2 Potential difference across a component is directly proportional to the current through it
3 V = I x R
3.1 V=p.d (v) I=current (a) R=resistance (ohms)
4 Thermistor
4.1 Where the resistance changes with temperature
4.2 Low temp --> high resistance High temp --> low resistance
4.3 At a particular temperature, a thermistor is an ohmic resistor
4.4 used to: act as a thermometer, control circuits activated by temperature
5 LDR
5.1 A light dependent resistor
5.2 A resistor whos resistance changes at differnt light levels
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