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From: john larkin <JL@gct.com>
Newsgroups: sci.electronics.design
Subject: Re: Interview Question (your Sunday ruined part 2)
Date: Mon, 21 Oct 2024 08:51:33 -0700
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On Mon, 21 Oct 2024 01:59:03 +0200, Lasse Langwadt <llc@fonz.dk>
wrote:

>On 10/20/24 23:17, john larkin wrote:
>> On Mon, 21 Oct 2024 01:18:29 +0530, Pimpom <Pimpom@invalid.invalid>
>> wrote:
>> 
>>> On 21-10-2024 12:46 am, Cursitor Doom wrote:
>>>> On Sun, 20 Oct 2024 12:12:22 -0700, john larkin wrote:
>>>>
>>>>> On Sun, 20 Oct 2024 14:59:18 -0400, "Edward Rawde"
>>>>> <invalid@invalid.invalid> wrote:
>>>>>
>>>>>> "john larkin" <JL@gct.com> wrote in message
>>>>>> news:2rjahj1m5itht9k5nlh5p9q11onumbbb5s@4ax.com...
>>>>>>> On Sun, 20 Oct 2024 19:32:45 +0200, Jeroen Belleman
>>>>>>> <jeroen@nospam.please> wrote:
>>>>>>>
>>>>>>>> On 10/20/24 19:18, Cursitor Doom wrote:
>>>>>>>>> John Larkin has from time to time posted some elementary questions
>>>>>>>>> he likes to torture his job applicants with. I'd like to propose one
>>>>>>>>> of my own.
>>>>>>>>>
>>>>>>>>> If I'm measuring 218 ohms between points A and B in this diagram,
>>>>>>>>> what is the value of Rx?
>>>>>>>>>
>>>>>>>>> https://disk.yandex.com/i/hxjWx0tDUCzxiA
>>>>>>>>
>>>>>>>> 517 Ohms.
>>>>>>>>
>>>>>>>> Jeroen Belleman
>>>>>>>
>>>>>>> Does R330 mean 0.33 ohms?
>>>>>>>
>>>>>>> I hate that sort of notation, like 2k47.
>>>>>>
>>>>>> I keep having difficulty not using it in LTSpice.
>>>>>>
>>>>>> 0.33 ohms would be 0R33
>>>>>>
>>>>>>
>>>>> Unless you believe in physics/SI notation.
>>>>>
>>>>> So is R330 the reference designator?
>>>>
>>>> Sorry, foreign notation. It's 330 ohms and 47 ohms.
>>>
>>> Thought so.
>>> Personally, I sometimes use the European style of placing decimal values
>>> after the unit name, especially when space is limited as in a packed
>>> schematic. 4k7 takes up slightly less space than 4.7k *and* there's no
>>> chance of missing the decimal point. Likewise values like 6n8
>> 
>> Maybe european decimal points slide off drawings and fall on the
>> floor. Robust American decimal points and schematic connect dots don't
>> do that.
>> 
>> How are things priced in a grocery store? Is the 'euros' symbol
>> straddled by numbers on both sides?
>
>no but € is behind the number not in front of it like $ ;)
>

But if it's priced in cents, the cents symbol goes last.

We follow SI rules in engineering, but in everyday life the quirky old
stuff is sort of fun. We measure distances in blocks or football
fields and fluid volume in olympic-size swimming pools, or sometimes
acre-feet.

4k7 is not an SI unit of measure.