13. The current source of EMF with ε = 12 V and negligible internal resistance is connected in series with choke and a voltmeter. Inductor L = 2,0 Mr. R = resistance of the voltmeter 11 ohms. After a time t after connecting the power supply voltmeter shows the voltage U = 6,0 V?

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)