Voltmeter Meter

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Frequently Asked Questions...

Physics - Error from Voltmeter?

(http://i68.photobucket.com/albums/i19/r34racer01/showmepl-15.jpg?t=1267640146)

In the circuit shown above:

* ℰ = 4 V;
* r = 110 Ω;
* R1 = 280 Ω;
* R2 = 370 Ω;
* Internal Resistance of the voltmeter meter = 5 X 103 Ω
* The ammeter is ideal (i.e. its internal resistance is zero.)

a) What is the magnitude of the percentage error the voltmeter introduces when trying measure the potential difference across R1 ? error = ? %


Best Answer...

Answer:

here made a nice jpeg for you =p

http://img690.imageshack.us/img690/8636/answere.jpg