1. A 26.0-Ω resistor, a 12.0-µF capacitor, and a 17.0-mH inductor are connected in series with a 150-V generator.

(a) At what frequency is the current a maximum?

1 answer

The subject of resonant LRC circuits is explained at
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/serres.html