Q6. You want to use your webcam to take some photographs, but you find that the light level is too low. To increase the light intensity you decide to place eight white light emitting diodes around the webcam. You have a 9V DC source to power the LEDS as well as a full E12 series of resistors. According to the LED data sheet you can expect a forward voltage drop of 3.1 V across these diodes and the current should not exceed 30 mA. You have also found that a current of 20 mA through a diode is ideal to provide the desired light intensity. For this question show all your calculations (a) Sketch the circuit that you will construct. (b) Calculate the value(s) of any resistor(s) you may use in your circuit.

Q6. You want to use your webcam to take some photographs, but you find that the light level is too low. To increase the light intensity you decide to place eight white light emitting diodes around the webcam. You have a 9V DC source to power the LEDS as well as a full E12 series of resistors. According to the LED data sheet you can expect a forward voltage drop of 3.1 V across these diodes and the current should not exceed 30 mA. You have also found that a current of 20 mA through a diode is ideal to provide the desired light intensity. For this question show all your calculations (a) Sketch the circuit that you will construct. (b) Calculate the value(s) of any resistor(s) you may use in your circuit.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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