24. Answer the following: a. Obtain the voltage Vo in e circuit. 2 mA 2 mA ska b. Determine the voltage Vo' measured when a voltmeter with 6-kn internal resistances connected as shown in the circuit below. 1 k ww www 4 kf2 5 kn funt Veltmeter c. The finite resistance of the meter introduces an error into the measurement. Calculate the percent error as - 1 x 100% d. Find the percent error if the internal resistance were 36k02.

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Thermistors

A thermistor is a special type of resistor whose resistance is more temperature-dependent than standard resistors.  The resistance of the thermistor decreases with increasing temperature. This is the basic principle of thermistors. This allows the thermistor circuit to detect very small temperature changes that cannot be observed with the Resistance temperature detectors (RTDs) or the thermocouples. Since the resistance of a thermistor is temperature dependent, it can be connected to an electrical circuit to measure body temperature. This high sensitivity to temperature changes makes thermistors very useful for accurately controlling and calibrating temperature measurements. In general, resistance increases with increasing temperature in most metals, but thermistors react negatively.