(a) A 12KQ Negative Temperature Coefficient (NTC) thermistor has a material specific- constant ß value of 4375 between the temperature range of 15 °C and 120 °C. Calculate its resistive value at 120 °C.

(a) A 12KQ Negative Temperature Coefficient (NTC) thermistor has a material specific- constant ß value of 4375 between the temperature range of 15 °C and 120 °C. Calculate its resistive value at 120 °C.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter59: Motor Startup And Troubleshooting Basics

Section: Chapter Questions

Problem 12SQ: How is a solid-state diode tested? Explain.

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Concept explainers

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.

Question

(a) A 12KQ Negative Temperature Coefficient (NTC) thermistor has a material specific-
constant B value of 4375 between the temperature range of 15 °C and 120 °C. Calculate
its resistive value at 120 °C.
(b) Explain the method used to measure the level of liquid in sealed tank by using
pressure sensor.

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