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Which statement correctly describes the difference between a thermocouple and a thermistor used as temperature sensors?
A
Both devices generate a voltage; the only difference is the length of the lead wire supplied with them
B
A thermocouple changes its electrical resistance with temperature, while a thermistor generates a small voltage at a junction of two dissimilar metals
C
A thermocouple generates a small voltage at the junction of two dissimilar metals, while a thermistor changes its electrical resistance as its temperature changes
D
Both devices change resistance; the thermocouple simply responds faster because it is larger