Explain the difference between a Positive Temperature Coefficient (PTC) thermistor and a Negative Temperature Coefficient (NTC) thermistor.
What will be an ideal response?
The resistance of a PTC increases as the temperature increases.
The resistance of a NTC decreases as the temperature increases.
You might also like to view...
Calculate, in inches, the length of 1/4” plate needed to bend a 90-degree angle with I/S leg measurements of a = 4.30” and b = 5.25”. Round to the nearest hundredth.
What will be an ideal response?
What is another name given to solid-state, reduced-voltage starters because of their ability to provide a smoother, stepless start and acceleration?
a. Kick-start controllers b. Soft-start controllers c. Smooth-start controllers d. Boost-start controllers
What specifies how much current is required to operate the first stage?
A) input bias current B) slew rate C) offset current drift D) input offset current
Which of the following instruments is designed to measure rotational speed?
A. dial bore gauge B. dial indicator C. load rotor D. tachometer