Question 2 Consider transmission of a digitalised voltage signal. The analogue signal before digitalisation is of frequency 200 Hz ~ 3k Hz. Hamming code is used as the error control method. Assume even parity is used. (a) To avoid information loss, what is the lowest sampling frequency? (b) If the received code word is 110100010101, determine if the code word is correct. If no, identify the wrong bit and obtain the original data word. (c) For transmitting the signal in (b), determine the bandwidth required.

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A: It is given that the internal resistance of the meter i.e Rm is 40 Ω.  Rm=40 ΩRs=10 Ωextra external…

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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.