MC1. You are asked to design a flashlight that will last at least eight hours without having to be recharged or having to replace the batteries. You also want it to be as small and as lightweight as possible. The flashlight will make use of an array of light emitting diodes (LEDS) that consumes 600 mW when supplied with by a 3 V source. Standard 1.5 V battery sizes include (listed from smallest and lightest to the largest and heaviest) AAA (1150 mAh), AA (2850 mAh), C (3800 mAh), and D type cells (8000 mAh). What is the smallest cell size that you can select if your design consists of two identical batteries connected in series?
MC1. You are asked to design a flashlight that will last at least eight hours without having to be recharged or having to replace the batteries. You also want it to be as small and as lightweight as possible. The flashlight will make use of an array of light emitting diodes (LEDS) that consumes 600 mW when supplied with by a 3 V source. Standard 1.5 V battery sizes include (listed from smallest and lightest to the largest and heaviest) AAA (1150 mAh), AA (2850 mAh), C (3800 mAh), and D type cells (8000 mAh). What is the smallest cell size that you can select if your design consists of two identical batteries connected in series?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:MC1. You are asked to design a flashlight that will last at least eight hours without having to be
recharged or having to replace the batteries. You also want it to be as small and as lightweight as
possible. The flashlight will make use of an array of light emitting diodes (LEDS) that consumes
600 mW when supplied with by a 3 V source. Standard 1.5 V battery sizes include (listed from
smallest and lightest to the largest and heaviest) AAA (1150 mAh), AA (2850 mAh), C (3800
mAh), and D type cells (8000 mAh). What is the smallest cell size that you can select if your
design consists of two identical batteries connected in series?
A) AAA cells
B) AA cells
C) C cells
D) D cells
E) None of the above are sufficient.
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