How must a voltmeter be connected in a circuit?

Thread starter jimbo71
Start date Feb 25, 2009
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Circuit Voltmeter

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A voltmeter must be connected in parallel with a resistor to accurately measure the voltage across it. This configuration ensures that the voltmeter measures the potential difference without significantly altering the circuit's current. Connecting it in series would result in an incorrect reading due to the voltmeter's internal resistance. Understanding this connection is crucial for accurate voltage measurements in electrical circuits. Proper connection techniques are essential for effective circuit analysis.

Feb 25, 2009

jimbo71

Homework Statement

How must a voltmeter be connected in a circuit to measure voltage across a resistor and why?

Homework Equations

Vv=Ifs(Rc+Rs)

The Attempt at a Solution

I think the voltmeter must be connected parallel to the series with its terminals on either side of the resistor.

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Feb 25, 2009

LowlyPion

Homework Helper

... why?

Feb 26, 2009

jimbo71

I'm not sure

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