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May 16, 2022, 10:31:45 pm
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Author Topic: IPT Question Thread + Useful Info  (Read 26474 times)  Share 

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BPunjabi

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Re: IPT Question Thread + Useful Info
« Reply #60 on: October 25, 2016, 09:26:20 am »
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Quote from: Hua Fei on October 25, 2016, 09:13:15 am
You're right for the first one but it's B for the second one. Because the distance is so big, optic fibre is needed so that there is faster transmission at segment 3. The last segment is more likely to be a twisted-pair cable than a coaxial cable because it's mainly used for audio and visual purposes (very short distances) e.g. connecting your VCR to your TV. You can read more about it at https://www.techwalla.com/articles/what-is-a-coaxial-cable-used-for

What paper is the second one?
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Hua Fei

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Re: IPT Question Thread + Useful Info
« Reply #61 on: October 25, 2016, 09:32:08 am »
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Quote from: BPunjabi on October 25, 2016, 09:26:20 am
What paper is the second one?

I know it's older than 2010 HSC. Other than that, I don't remember

Well, I found that the question is from the 2001 HSC. The answers say it's B...

Mod Edit: Posts merged
« Last Edit: October 25, 2016, 05:57:43 pm by Aaron »
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fergo

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Re: IPT Question Thread + Useful Info
« Reply #62 on: October 28, 2017, 12:10:50 pm »
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Concerning wireless transmission, how important is it to know the frequency ranges of different types?ie that bluetooth works on a 2.45GHz frequency
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