What is it about scopes, that make them unique from multimeters? I ask that for two reasons based on my own experience with the last scope I had.
1) I learned that getting a scope to read current is apparently not a trivial thing and you need some fairly expensive probes to be able to do it.
2) When I tried to use the ground clip on the scope probe to read the signal over a single resistor by putting the ground lead on one side then the probe on the other side of the resistor, it immediately gave me some kind of a warning about over voltage I think ... I didn't leave the message up long enough I just saw the red and disconnected immediately... but I figured that the problem was that the ground lead has to be connected to a point on the circuit where there is no voltage at all and if you don't then it's all bad, but I don't understand why?
1) I learned that getting a scope to read current is apparently not a trivial thing and you need some fairly expensive probes to be able to do it.
2) When I tried to use the ground clip on the scope probe to read the signal over a single resistor by putting the ground lead on one side then the probe on the other side of the resistor, it immediately gave me some kind of a warning about over voltage I think ... I didn't leave the message up long enough I just saw the red and disconnected immediately... but I figured that the problem was that the ground lead has to be connected to a point on the circuit where there is no voltage at all and if you don't then it's all bad, but I don't understand why?
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