Abstract: An electric meter comprises a cylindrical internal magnet so magnetized as to have N and S poles oriented in a direction such that a straight line connecting both poles intersects with the central axis of the magnet at right angles thereto. First and second circular arc-shaped auxiliary yokes are provided along the magnetized direction of said cylindrical internal magnet, around the outer periphery of the internal magnet, and at prescribed distances from the N and S poles of the magnet, and a movable coil is pivotally mounted in the magnetic field produced between the tip end portions of the first and second auxiliary yokes and the N and S poles of the cylindrical internal magnet.