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# Darrell Fletcher

105646
Feb 2007
• Responses: 4

## Education

• BSc, University of South Florida, 1996
• MSc, Mercer University, 2003

## Subjects

• Mathematics
• Computer Science
• Chemistry
• Languages

## Solution Library

### Functions and Their Graphs

See attached file for full problem description.

Mathematics / Algebra / Graphs and Functions » 144347

### Perform many calculations and show the formulas used for each step.

My school required me to pick a class outside of my field of study in Information Security and halfway through, I realize I mad a poor choice. The first half of the class was Ohms Law and a few other simple formulas and wasn't that bad.

See attached for full problem description.

Engineering / Electrical Engineering » 138329

### Magnitude of ac input

Magnitude of ac input. See attached file for full problem description.

FIGURE 4(a) shows the circuit of a resistive load fed from a rectifier, via a filter. The filter is designed to remove unwanted a.c. that might be present in the output of the rectifier.
To test the performance of the filter READ MORE »

Engineering / Electrical Engineering » 140404

### Voltage Out and Voltage In Calculations

Notes:
In the schematics, ground and chassis may be assumed to be common, unless specifically stated otherwise. Unless otherwise specified, assume that Op-Amps are ideal and that supply voltages are +/- 15 V.

3. Given that:
VD1 = 0.7V at ID1= 1 mA, n = 1 for diode D1
R1 = 500 ohms, R2 = 100 oh READ MORE »

Engineering / Electrical Engineering » 155361