Current is directly proportional to voltage (if the temperature is constant).
Voltage = current * restistance
To calculate total resistance of 2 resistors in a series circuit add them both together.
To calculate the total resistance of 2 resistors in a parallel circuit:
Total resistance = (R1 * R2) + (R1 + R2).
LDR - light dependent resistor. As light increases, resistance decreases.
Thermistor- temperature dependent resistor. As temperature increases, resistance decreases.
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