A- analog meter- low resistance
B- analog meter- high resistance
C- digital meter- high resistance
D- digital meter- low resistance
2007-07-24 06:15:45 · 4 answers · asked by eric w 2 in Science & Mathematics ➔ Engineering
It is C because you want fast response (to catch changing signals) so digital is required. You also want high resistance (to avoid causing a high current draw through components with limited ability to absorb power.)
2007-07-24 09:40:19 · answer #1 · answered by Rich Z 7 · 0⤊ 0⤋
It has to be either B or C, because you always want a high impedance so as to not disturb the circuitry (this applies whether you are testing analog control modules or digital processors).
The analog meter would be the better choice, because you could see varying voltages within a control module. It would be a little 'slow' for measuring processor digital lines, but overall it is probably the best choice.
B.
.
2007-07-24 15:29:04 · answer #2 · answered by tlbs101 7 · 1⤊ 0⤋
The shunt resistance should be adjusted for the particular circuit application.
A digital meter is better for observing staged results or end states, whereas an analog meter is better for observing trends.
2007-07-24 13:26:05 · answer #3 · answered by aviophage 7 · 0⤊ 0⤋
E
2007-07-24 13:19:59 · answer #4 · answered by Anonymous · 0⤊ 0⤋