3) A thermistor is being used to measure the temperature of an infant's incubator as part of the temperature control system. Unfortunately, the original thermistor is broken, and a smart biomedical engineer is going to change it with another that is not the same model, and she doesn't have the specification sheet of the new one (specifically she doesn't have ẞ the material constant or the characteristic temperature). She CORRECTLY proposed to measure the resistance value of the thermistor at 2 different temperature and use them to calculate ß. The following were her measurements: T₁ = 18°C with R₁ = 27kN and T₂ 35°C with R₂ = 14k. 1- Derive an equation to calculate ß and find its value. 2- What is the resistance of the thermistor Ro at To = 25°C?

C) The figure4 shows the relation between resistance and temperature for the thermistor.   What is the value of resistance approximately at 70°C? What happens to the resistance value as the temperature increases?                                          3.  Is it PTC or NTC thermistor? Justify your answer.

Assuming that the diodes in the circuits of Figure-3 are ideal, utilize voltage divider theorem to simplify the circuits and thus find the values of the labeled current and voltage. Note: please solve within 30 minutes. Avoid plagiarism