Question
Suppose we can download 10 pages per minute. A page has 24 lines on average and a line has 80 characters on average. Assuming 8 bits per character, the bit rate is :
The correct answer is
$2.56 \times 10^3$ bps
Calculate Data Bit Rate
This solution explains the step-by-step calculation to determine the bit rate based on given download speed and page content details.
Calculate Characters Per Page
Determine the total number of characters on a single page.
- Given: 24 lines per page and 80 characters per line.
- Calculation: Total characters = $24 \text{ lines/page} \times 80 \text{ characters/line} = 1920 \text{ characters/page}$
Calculate Bits Per Page
Convert the total characters per page into bits using the bits per character information.
- Given: 8 bits per character.
- Calculation: Total bits per page = $1920 \text{ characters/page} \times 8 \text{ bits/character} = 15360 \text{ bits/page}$
Calculate Download Speed in Pages Per Second
Convert the download speed from pages per minute to pages per second.
- Given: 10 pages per minute.
- Calculation: Speed = $\frac{10 \text{ pages}}{1 \text{ minute}} \times \frac{1 \text{ minute}}{60 \text{ seconds}} = \frac{10}{60} \text{ pages/second} = \frac{1}{6} \text{ pages/second}$
Calculate Overall Bit Rate
Compute the final bit rate in bits per second (bps).
- Calculation: Bit rate = (Total bits per page) $\times$ (Download speed in pages/second)
- Bit rate = $15360 \text{ bits/page} \times \frac{1}{6} \text{ pages/second}$
- Bit rate = $\frac{15360}{6} \text{ bps} = 2560 \text{ bps}$
- Expressing the result in scientific notation: $2560 \text{ bps} = 2.56 \times 10^3 \text{ bps}$
Final Result
The calculated bit rate is $2.56 \times 10^3$ bps.
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- Which of the following relationships is/are not true?
(A). Most probable velocity = $\sqrt{\frac{2RT}{M}}$
(B). PV = $\frac{3}{2}kT$
(C). Compressibility factor Z = $\frac{pV}{nRT}$
(D). Average kinetic energy of gas = $\frac{1}{2}kT$
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(A). Primary structure of protein is associated with amino acids
(B). Secondary structure of protein is associated to peptides
(C). Tertiary structure of protein is associated with polypeptide chains
(D). Quaternary structure of protein is associated with polypeptide chains
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