ECE 1574 Homework Set #7
Problem Solving with C++
Due date: 3/15/10 by 11:55AM
This assignment is to be done individually
Complete the lab exercise and answer questions 1, 2, and 3 during the lab session. Answer the
other questions later.
LAB EXERCISE
In good C++ style, write a program which by a Monte Carlo technique estimates the reliability of
the electrical circuit represented schematically below.
2 ohms
3 ohms
























4 ohms
6 ohms



100 volts
10  20 ohms




___
___


In the circuit, there are a 100volt DC source, a 2ohm resistor in parallel with a 4ohm resistor,
and then a 3ohm resistor in parallel with a 6ohm resistor. The circuit is terminated in a load
whose value varies randomly between 10 and 20 ohms.
REQUIREMENTS
1.
Using a flat logarithmic distribution values for the load [that is, a distribution in
which any value in the domain from ln(10 ohms) to ln(20 ohms) is equally likely],
let your program solve the circuit 100,000 times, counting the number of times
the voltage across the load falls below 77.5 volts.
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