answer the all questions thank you.

a) Negative feedback circuits such as the Schmitt trigger are used to solve noisy scenarios in comparator circuit applications. Using circuit diagrams and waveforms, explain clearly how this is achieved. b) An LM35 temperature sensor has the following transfer function: Vout=C10mVTemp(C) Design an electronic circuit to turn on an LED rated at 5V whenever the temperature falls below 85C. The circuit should use a comparator, a few resistors and the LM35 temperature sensor. You should demonstrate by calculation and by simulation in multisim or proteus that your circuit works correctly. Only screenshots are required for simulation no files needed