【電験3種】今日の回路問題 #1

Starting today, I'm going to start a "Today's Circuit Problem" series. I'd like to update it daily, but it will probably be about twice a week. I hope you'll continue to support me this year. Please also refer to the following: Qualification Taro's Electrical Engineering Examination Level 3 Preparation Blog http://xn--ehq198h6bssyc.com/