Noise filter and electric circuit

A noise filter comprising:

• a first conductive member and a second conductive member that constitute a transmission line;
• a third conductive member that is disposed with a first intermediate member between the first conductive member and the third conductive member;
• a fourth conductive member that is disposed with a second intermediate member between the second conductive member and the fourth conductive member;
• a first resistance member and a second resistance member that electrically join the third conductive member and the fourth conductive member;
• and
• a first magnetic path that is formed in a region between the third conductive member and the fourth conductive member, wherein
• one or both of the first intermediate member and the second intermediate member is an insulator, and
• the third conductive member, the first resistance member, the fourth conductive member, the second resistance member and the third conductive member are circularly joined to form a circular electric circuit,
• wherein the circular electric circuit through the third conductive member, the first resistance member, the fourth conductive member, the second resistance member and the third conductive member is formed in a length direction of the transmission line.