Chapter 1: Approximations and Theorems

Question 1

Ideal Voltage Source

Answer 1

Constant voltage and zero resistance

Question 2

Second approximation voltage source

Answer 2

Ideal voltage source in series with a resistor

Question 3

Stiff voltage source

Answer 3

R_S < 0.01R_L

Question 4

Stiff Current Source

Answer 4

R_S = 100R_L

Question 5

Thevenin Voltage

Answer 5

Voltage across load terminals when load resistor is open

Question 6

Thevenin Resistance

Answer 6

Resistance across Load Terminals when all other sources are reduced to zero

Question 7

Thevenin Theorem

Answer 7

I_L = V_TH / ( R_TH + R_L)

Question 8

Norton Current

Answer 8

I_N = Short Circuit Current = Infinite

Question 9

Norton Resistance

Answer 9

Resistance when load resistor is open R_N = R_TH

Question 10

Norton’s Theorem

Answer 10

V_L = I_N(R_N || R_L)