GENE 123 Q

GENE 123 Q

1. DC Questions

   • Thev and Norton
     • 1. Are there dependent sources?
       • Yes? Then Solve for I short curcit by attaching a wire to the two terminals
         • Now solve for V open curcit by finding the voltage between the two terminals with no wire.
           • Now find R Thevian using: Voc = Isc*Rt
             • Now draw the required Thevian or Norton Curicits.
       • No? zero sources by making V sources wires and I sources open curcits
         • Reduce the curcit to find Rt.
           • Now find Isc by putting a wire between the terminals, keep all the sources
             • Use Voc=Isc*Rt to find Voc.
               • Draw required curcit.
       • After drawing curcits if power is required use P = Voc^2/4Rt or Isc^2Rt/4
     • Thevian curcit is a voltage source in series with a resistor.
     • Norton curcit is a current source in parellel with a resistor.
   • OP Amps
     • Can only use nodal, KCL and KVL to solve.

2. Basic Tools

   • Nodal Analysis
     • DC use: V=IR
   • Mesh Analysis
     • For DC: use V=IR
   • KCL/KVL
     • KCL: Sum of all currents in a loop = 0.
       • For DC use: V=IR
       • For AC use:
     • KVL: Sum of all voltages in a loop = 0.
       • For DC use: V=IR
       • For AC use:

3. Ac Questions