Consider the circuit in diagram (a) below. What is the potential difference over the 140 k2 resistor in this circuit? Now consider the circuit in diagram (b) below. The only difference is that a voltmeter has been added so that the potential difference could be measured. The voltmeter is the same one as the previous problem. What is the voltage reading on the voltmeter? Why is it different from the theoretical value that you found for diagram (a)? 9 V HILF 140 70 k 9 V HON 140 kQ 70 k