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jonny [76]
4 years ago
11

Technician A says that PTC heaters can be built into a conventional heater core assembly. Technician B says that a PTC heater's

electrical resistance will decrease as its temperature increases. Which technician is correct?A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Computers and Technology
1 answer:
Art [367]4 years ago
7 0

Answer:

A) Technician A only.

Explanation:

Only Technician A who said that Positive Temperature Coefficient (PTC ) heaters can be built into a conventional heater core assembly is correct because they use the same heat loss and transfer system. This is easily verifiable with a simulation.

Technician B, who said that a PTC heater's electrical resistance will decrease as its temperature increases is incorrect because the resistance of a conductor is directly proportional to temperature. This means that a PTC heater's electrical resistance will increase as its temperature increases.

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