II From your knowledge of electronics, determine what kind of gate this is. R1 and R2 are 4.7 K, Vcc is 5V Give a very brief explanation of your reasoning 4.7K 4.7K OUT INPUTS 平マ 平: When dealing with a logic function for a control system, there are three ways to describe it. What are they? Use a Karnaugh Map to reduce this SOP expression ĀBCD+ĀBCD + ABCD+ABCD + ABCD+ABČD+ABCD = Q CD CD CD CD Reduced Expression AB AB. AB AB. I only have adders...how do I do a subtraction? A very useful use for 555 timers is as a clock. What do you do to make sure the frequency and duty cycle are what you want (brief description) イ Analog Circuit Analysis Calculate the total Resistance seen by the Battery WrWr U 09 A001 Calculate the current through the 60 ohm resistor %3D Derive the Kirchoff's equations for the following circuit. Simplify for the answer ( only 1 term for each variable per equation) 3 100 U9 AZI 35 0 ww 150 Explain how a capacitor works You are troubleshooting a 10V circuit and find there is 1 mA current through a capacitor that is 10 uF. What should you do next? Why would one put a capacitor across the + and- rails of a circuit? Semiconductors What happens (very brief description) when a semiconductor is forward biased? Reverse biased?

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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.