B refers to Basic, A refers to Average, H refers to Hard, and * refers to problems with an...

B refers to Basic, A refers to Average, H refers to Hard, and * refers to problems with answers.

(A) Figure a represents a simple voltage divider circuit. A voltmeter with an internal resistance of 1 MΩ is connected to measure VA, the voltage across R2. Calculate the voltage measured for VA and the error from the actual value. If the same voltage divider is constructed using 200 kΩ resistors, as shown in Figure (b), calculate the measured VA and the error from the actual value.

FIGURE (a) Voltage divider with voltmeter. (b) Voltage divider using high-value resistors.