Physics

Problem

A voltmeter with a finite resistance

R_{v} = 1000\,\Omega

is used to measure the voltage across a resistor

R_{1} = 500\,\Omega

R_{1}

is connected in series with another resistor

R_{2} = 500\,\Omega

across a

10\,\text{V}

supply. Calculate the percentage error in the voltmeter reading compared to the true voltage across

R_{1}

(without the voltmeter connected).