In the circuit shown in Fig. 3.9, the resistor values are given by R1 ¼ 1000U; R2 ¼ 1000U; V ¼ 20 V. The voltage across AB (i.e., across R2) is measured by a voltmeter whose internal resistance is...

In the circuit shown in Fig. 3.9, the resistor values are given by R1 ¼ 1000U;

R2 ¼ 1000U; V ¼ 20 V. The voltage across AB (i.e., across R2) is measured by a

voltmeter whose internal resistance is given by: Rm ¼ 9500U.

(a) What will be the reading on the voltmeter?

(b) What would the voltage across AB be if the voltmeter was not loading the

circuit (i.e., if Rm ¼ infinity)?

(c) What is the measurement error due to the loading effect of the voltmeter?