Absolutely not. I have worked with some guys who were not much better than monkeys and they couldn't install worth a damn.
Perhaps I overstated when I made the "overqualified" remark. I know Ohm's law, however I have never calculated anything out on paper to troubleshoot an alarm system. Therefore I can understand folks saying that one need not know it.
Would I hire someone who didn't at least know what it was? No.
Ohm's law is such a basic aspect of electronics that someone who doesn't know it doesn't know enough about electronics to work with alarms (IMHO).
But unfortunately interviewing and hiring techs is not in my job description.
I can't believe the way this thread have evolved. Tech's DO use Ohm's law on a regular basis whether they know it or not. Haven't you ever been diagnosing a swinger before? That involves measuring the loop resistance, and knowing the current that will trip the initiating circuit. Of course we just look up the limits in our manuals, but what about finding voltage drops across series-parallel circuits on that same loop? We're calculating this as we go along the loop -- in our head.
Haven't any of you had special apps. that required a bunch of relays? Did you not first calculate the voltage divided by coil resistance to see how much of your p/s would be used?
Haven't any of you taken the NBFAA level one course that REQUIRES you to know Ohms law to keep your licence?
Knowing DC circuit analysis makes the difference between a lead-man and a helper.
I didn't ask them what their thought process was, but I assumed they used the meter as you would a battery and bulb or a buzzer continuity tester. Relative brightness of the bulb or tone of the buzzer gives some indication, similar to a meter ..... yet you don't have to use ...... or even know that there is a formula, to figure out if the circuit is good or not.
But anyway these guys would use a meter for continuity and for reading voltage on a circuit .... I guess because they knew they were supposed to get a reading of 12. If they didn't get that, they knew "something" was wrong. Sometimes I had to help but not often. They wouldn't have ever tried to take a current reading. I doubt they would have understood what they were looking at or even know what to expect.
These guys had been around for a pretty long time and were good installers and could usually locate any problems that occured in an installation. That's all that I expected from them. They knew there was an Ohms Law. They just didn't know what it was. Maybe they figured if they broke it, they would get a summons.
This is a futile argument. we disagree and that is that. the world wont end because if it. and as for the shot without provocation, touchy, touchy. if you can't take a shot every once and a while what fun is it? i don't have the burning hatred for you that some seem to here. you were just an easy target in this instance.
So chill out and take a ride on your sccoter, scooter.
True, but in this newsgroup that qualifies it for at least another 263 posts. :^)
No problem. But that's why I bothered to correct you.
Fun for whom? I guess you won't mind if I take a few potshots at you every now and then.
Hatred only burns the one doing the hating. My life is fine regardless how screwed up some of the idiots who post here may be. Guys like Olson, Cracker and Jiminex spend more time and energy attacking me than they do running their business. Guess who they hurt.
Actually, I've decided to sell the Burgman 650 scooter and buy something else. It's a fun bike but after taking the MSF course I decided I'd look at a few cruisers.
Perhaps it would be a good idea for you to spend some time on your own website... Like *changing the contact information for instance* (you're still showing your old address... Tsk!). I notice that you no longer use the free "Kounter". Those pop-under ads from "Winfixer" were annoying as hell, weren't they? I'll bet you got lots of complaints (considering the number of hits you supposedly get every day)... And what ever happened to that "troll-free" number you said you were going to get?? Seems to me that a guy that's doing business "online" should definitely have one. In fact, ISTR you used a similar argument when deriding a competitor a while back...
I guess not if you are training monkeys. if you dont know what the numbers on the meter mean all you are doing is "reading" the meter. using that information from the meter implies an understanding of the concepts behind numbers.
The explanation is simpler than that. You were wrong. You don't need to know Ohm's law to use a meter. Many people who don't know Ohm's law at all can still read the meter. There's no "instinctive" use (whatever that means) of what they don't know.