How to Calculate Voltmeter Resistance?
Voltmeter Resistance calculator uses Voltmeter Resistance = (Voltmeter Range-Current Magnitude*Resistance)/Current Magnitude to calculate the Voltmeter Resistance, The Voltmeter Resistance formula is defined as internal resistance of voltmeter.Ideal voltmeter has infinite resistance so no current will flow. This is why voltmeters are placed in parallel to the circuit, not in series. Ammeter is placed in series however and has low resistance. Voltmeter Resistance is denoted by Rv symbol.
How to calculate Voltmeter Resistance using this online calculator? To use this online calculator for Voltmeter Resistance, enter Voltmeter Range (Vr), Current Magnitude (I) & Resistance (R) and hit the calculate button. Here is how the Voltmeter Resistance calculation can be explained with given input values -> 12.16865 = (19.32-2.96*2.23)/2.96.