Answer updated- please check the signs

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Hi everyone,

I am pretty sure I got the signs right in this answer. The point is that a current pointing in the direction of i_1 will reduce the voltage V_1, because the current takes the positive charge away from the capacitor. A current pointing in the direction of i_2 will increase the voltage V_2 for the same reason.

Finally, Lenz's law states that a potential difference in an inductor induces a current pointing in the opposite direction, so dI/dt should point in the opposite direction of the potential difference.

-Rob

22:01, 26 March 2018