P. 4494. All the resistances of the resistors shown in the figure are R=2 M, the capacitance of the capacitor is C=1 F, the voltage of the battery is U=90 V. The switch K is held at its closed position in order to charge the capacitor, and then it is opened.
a) What is the reading on the ideal voltmeter before opening the switch?
b) What is the reading on the voltmeter a short time after the switch was opened?
Deadline expired on 10 January 2013.