Point a in Fig. P26.73 is maintained at a constant potential of 400 V above ground. (See...

Point a in Fig. P26.73 is maintained at a constant potential of 400 V above ground. (See Problem 26.67.) (a) What is the reading of a voltmeter with the proper range and with resistance 5.00 × 10⁴ Ω when connected between point b and ground? (b) What is the reading of a voltmeter with resistance 5.00 × 10⁶ Ω? (c) What is the reading of a voltmeter with infinite resistance?