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I,m trying to perform transient analysis of next circuit:

LC-series, transient analysis

In t=0 switch is opened. Initial condition Vc=0, IL=4A.

But that doesn't work properly in Multisim (fig. above)

Voltage across Inductor does not match estimated value. Multisim show 120V in t=0, rather than 0V. How to fix it?

Link for Multisim Design (OneDrive): https://1drv.ms/u/s!ArJljGNjPhExtDGjTEqIZTgr4fCf

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  • \$\begingroup\$ where is your switch? \$\endgroup\$ Commented Aug 4, 2016 at 13:57
  • \$\begingroup\$ Vladimir Cravero, thanks for reply. I,m not sure I need it. \$\endgroup\$
    – thedriveee
    Commented Aug 4, 2016 at 14:07
  • \$\begingroup\$ Yes you need a switch. \$\endgroup\$
    – Andy aka
    Commented Aug 4, 2016 at 17:08
  • \$\begingroup\$ Andy aka, thanks for reply. I add spst switch. How to use it in transient analysis? \$\endgroup\$
    – thedriveee
    Commented Aug 4, 2016 at 17:35

1 Answer 1

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It turns out I measured voltage incorrectly. I assumed V(2) was Voltage across inductor, but it was voltage between left terminal of inductor and ground. Now I add new variable V(L1)-V(R1) and it fix everything. FYI: I did not need switch.

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