Sensor and electric device

A sensor, comprising:

• a base including a first face;
• and
• a first structure body fixed to the first face, the first structure body including:
• a first support portion fixed to the first surface, the first support portion including one or a plurality of first support regions, the one first support region being annular, and the first support regions being arranged annularly,
• a second support portion fixed to the first face and provided around the first support portion, the second support portion including one or a plurality of second support regions, the one second support region being annular, the second support regions being arranged annularly,
• a first movable portion supported by the first support portion and the second support portion and apart from the base in a first direction crossing the first face, and
• a first fixed electrode being annular and fixed to the first face,
• the first movable portion including:
• a first movable electrode being annular, a first conductive member configured to conduct a first current flowing along a first radial direction from the first support portion to the second support portion, the first current having at least one of a first orientation from the first support portion to the second support portion or a second orientation from the second support portion to the first support portion,
• the first fixed electrode facing the first movable electrode, and
• a first gap being provided between the first fixed electrode and the first movable portion.