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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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Question

The period of this signal is about ____ ms (milliseconds). Use this picture for 2 additional questions below.

The oscilloscope range selector determines the scale on the screen.

That means number of Volts per line for amplitude vertical (V/div) and the number of milliseconds per line for time horizontally (ms/div).

The frequency of the signal in previous question is about ____ Hz.

The peak to peak amplitude of the signal on the oscilloscope on first question is about ___ Volt(s).

During sound digitizing the sound frequencies ranged from 200 Hz to 2.2 kHz. Based on Nyquist theorem the sampling frequency should be at least ____ Hz.

Select the FM Radio Quality recording format on the picture below and calculate the size of a 30 seconds uncompressed audio file (like a WAV file) in kB (kilo Bytes).

This is a ____ mega pixels picture.

Based on the same image file properties screen shown in previous question, the size of the file saved without compression would be ____ MB (Megabytes).

The typical picture pixel bit depth (bits per pixel) is 24 bits. That means, each pixel can have ___________ million different number of colors.

Calculate how many kB (kilobytes) is the size of an uncompressed color image with VGA spatial resolution of 640 x 480 pixels and 16 brightness levels for each color (red, green and blue).

When making prints from your digital camera, you should consider the resolution of 170 DPI (Dots Per Inch). If you want to be able to make prints up to size 5" x 7", calculate the minimum Megapixel setting you should configure your digital camera to.

The size of this video file is ______ MB

Note: This Details tab is from Windows properties of a video file. The Data Rate is for video only. The Bit rate is for audio only. The Total bitrate = audio + video. The format of Length is HH:MM:SS. Therefore you need the Total bitrate and the Length of the video and finally convert it to MB.

Information about a video with audio:

The frame rate is:	15 Hz
The spatial resolution of each frame is:	428 x 240 pixels
The brightness resolution per pixel is:	24 bits
Minimum sound frequency is:	50 Hz
Maximum sound frequency is:	18 kHz
The sample size is:	16 bits

Select sampling frequency based on Nyquist theorem.

Calculate the size of the resulting video with stereo audio file in MB (Mega Bytes), that is 10 seconds long, and no compression used.

______ format is using lossy compression.

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