Loading…
Quick check from College Physics, 21.4 DC Voltmeters and Ammeters
Digital meters are able to detect smaller currents than analog meters employing galvanometers. How does this explain their ability to measure voltage and current more accurately than analog meters?
Answer it in your own words before you look.
Since digital meters require less current than analog meters, they alter the circuit less than analog meters. Their resistance as a voltmeter can be far greater than an analog meter, and their resistance as an ammeter can be far less than an analog meter. Consult Figure 21.27 and Figure 21.28 and their discussion in the text.
How did it go?