Second Homework Assignment

1 .Examine the circuits below and solve them as indicated. Make sure you show your work, don't just submit an answer but explain/show your reasoning.

Circuit 1:

• The total resistance is 30
• R₄ = 10
• V₁ = 5
• V₂ = 8
• V₃ = 7

Determine values for the remaining R's and what the total current I is. Report those values

Circuit 2:

• Determine the total Resistance for this circuit
• Determine values for I₁ (top resistor) and I₂ (bottom resistor). Total incoming current is 3 amps.

Circuit 3:

• Determine the total resistence for the configurations shown in I, II and III.
  
  
  2. Explain how the process of "doping" a semi conductor can improve its overall efficiency.

  3. One of the basic mechanisms for maintaining Moore's Law has been the ability to make things smaller and smaller. Do some research on the term "lithography" and discuss the evolution of various techniques that have improved this process over the last 20 years.