Problem 1. Define doping. 2. What is the difference between a pentavalent atom and a trivalent atom? 3. What are other names for the pentavalent and trivalent atoms? 4. How is an natyne can

Q1) a)Explain how doping a pure silicon crystal with donor impurity atoms makes more charge carriers available for conduction.b)Does the above doping result in a p-type or n-type semiconductor? Explain your answer.                                      c) When the diode is forward biased:i) What happens to the barrier potential?ii) What happens to the depletion region?iii) Indicate on your diagram the directions in which the holes and electrons move

Given the circuit below, What is the output voltage in volts on the positive half cycle of the output? Consider Germanium diode.(answer with polarity ( + or - ) and value) R1 D; D2 VIN VOUT 5V $7v! Answer:

In the circuit shown below, the diode has a turn-on voltage of 1 V. Assume Vs = 39V, R₁= 10k ohm and R₂= 5 k ohm. Assume the diode is 'on' and find the diode current in mA. Round your answer to two decimal places. V R₁ www 11₂ ww R₂ [13 4