Chapter 10. Basic Measuring Instruments. There are 3 types of instruments we use in 50A: Ammeter Voltmeter Ohmmeter. Voltmeters and Ohmmeters are made using ammeters. To understand loading effects To understand a practical use for series and parallel circuits
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Basic Measuring Instruments
Voltmeter sensitivity is expressed in ohms/volt (Ω/V). A voltmeter is considered more sensitive if it draws less current from the circuit.
The sensitivity of a voltmeter that draws 50uA is the inverse of this, 20,000 ohm per volt.