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Results tagged with multimeter
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user 305961
A multifunction measuring instrument used for measuring AC and DC voltage [V] and current [A] as well as resistance [Ω]. Many digital multimeters can also measure frequency [Hz], duty cycle [%], capacitance [F], temperature [°C], and/or other electrical or physical properties. Most are handheld; more expensive bench models are also available for applications requiring high precision.
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How do I find internal resistance of multimeter, in both voltmeter and ammeter capabilities?
@jonk's answer was pretty good but had trouble seeing how exactly he derived the equation $$R_{v}=\frac{R_{1}R_{2}}{\left(\frac{V_{s}}{V_{m}}-1\right)R_{1}-R_{2}}$$
Say we have the following circuit:
…
