An instrument used to measure an electric current by determining the direction and magnitude of the horizontal components of the Earth’s magnetic field. The compass is placed with the needle parallel to the coil, a current is passed through, and the angle of deflection can be measured.
Features: sturdy heavy duty non-magnetic base measuring 20 x 11.8 cm; non-magnetic stand, non-magnetic plane, 10cm compass and copper magnet wire.
Stands 24cm tall.