Electronics > Beginners
Trying to prove a point
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soldar:

--- Quote from: DimitriP on June 07, 2019, 09:45:35 am ---Does a device have an electrical state when power is not applied?
Doesn't an "electrical state" imply existence of ....electricity?

Or to put in in other words, what's the weight of an elephant with no gravity "applied"?

--- End quote ---
If a man talks but his wife is not there to hear him, is he still wrong? :)
Cerebus:

--- Quote from: soldar on June 08, 2019, 10:43:14 am ---If a man talks but his wife is not there to hear him, is he still wrong? :)

--- End quote ---

I've checked with the Mrs. and the answer is "Yes".

Back to the, according to the Mrs., much less important issue of the two questions presented as examples.

If the person who set them can't see why they are very badly written questions then they should be sent off for some remedial education themselves. If they actually know that they are terrible questions, but insist on still defending themselves to their students when they point out the inadequacies of those questions they should get the hell out of education as a career. Still claiming to be right, when proven wrong, is a disqualifier for almost any occupation except hermit or politician.
Nominal Animal:
I agree with what Cerebus wrote above, even though I recommend a softer initial approach.

That is, I still believe one should start with the assumption that it is a miscommunication and not an error.  Doing that in my experience makes others do that too, and therefore the quality of the information exchange rises, and that is excellent value for small effort.  Me fail English often myself when I get excited or tired, and no matter of remedial education seems to fix that.  However, when the error is proven (as it has in various posts in this thread), refusal to correct that error means nothing that person says can be taken at face value anymore.
bson:

--- Quote from: exe on June 07, 2019, 09:02:08 am ---I don't like such questions. Why can't they put it as "what is default state of a normally open (momentarily) switch"? Looks like they over-complicate things just to pan students. Why doing this? Give knowledge, not frustration.

--- End quote ---
In a sense yes, but it's also about reading comprehension, paying attention to detail, and context.  Such as, what is a switch.  A switch closes two contacts.  In the absence of other information, that is what a switch is.  Hence, C or any other talk of applying power is irrelevant.  A relay is a coil-actuated switch, but there is no talk of coils or relays here.  Just a switch.  Nor do coils or power need to be introduced to answer the question.  Questions like this teach students to work with the information provided, not go off and imagine something other than what's actually stated.  This is a critical cognitive engineering skill, because 99% of the time PMs will come with a poor explanation of a problem that requires clearing up before proceeding to find a solution, along with a proposed solution (that should be courteously accepted but doesn't need to make it further than your inbox).  It's a pretty basic critical reasoning skill.
ebastler:

--- Quote from: exe on June 07, 2019, 09:02:08 am ---Why can't they put it as "what is default state of a normally open (momentarily) switch"?

--- End quote ---

Yeah, or even better: "What is the normal state of a normally open switch?"  :P

The standards at school are not quite that low, I think...  ;)
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