# Terry

## Terry

• Submitted By: chan84
• Date Submitted: 02/28/2009 2:49 AM
• Category: Technology
• Words: 513
• Page: 3
• Views: 451

SUMMARY
This lab was done by calculating the resistance of three diodes by measuring the voltage and the current flowing through each of the Three diodes and a resistor of a series circuit that we had. We apply Ohm’s law (R=V/I) to find the resistance of the three diodes. We reconnected each of the Three diodes to find the current and voltage across the series circuit. We also measured the voltage across the 100ohm resistor.

INTRODUCTION
The purpose of this lab was to investigate the characteristics of three diodes by measuring resistance and voltage through each of the three diodes in a series circuit that we had and to apply Ohm’s law. The three diodes are 1N4001, Zener and LED. Each of the diode was different. By finding the voltage and the current across the circuit we apply it to ohm’s law: R=V/I to find the total resistance.

DISCUSSION
The objective was to investigate three kinds of semiconductor diodes characteristics by measuring and calculate the total resistance across three different types of diodes. We measure the diodes in a forward biased and reverse biased then we recorded in table 1. The series circuit was plugged into a power source through the positive and the negative side of the circuit. Using a range of applied voltages from 0-4 volts and taking the appropriate measurements using multimeter. I measure the Voltage and Current of the standard (1N4001) diode and I also measure the voltage of the 100 ohms resistor then input the data into table two. Once I finish measuring the standard diodes and I repeat the same step on the second diodes which is the LED diode and recorded it on table Three. For the Zener diode, I use a range of 0-6 Voltage to measure the voltage and current of the Zener diode in a forward and reverse Biased way and recorded on table four. The total resistance was calculated by dividing the voltage by the current using Ohm’s law. This was done for all three of the diodes and was recorded into table two, three and...