About This

• Comprehensive Electromagnetic Relationship Demonstration: This apparatus is used to show the direction rule of ampere force, and analyze the correlation between the magnitude of ampere force, current intensity, length of energized wire and magnetic induction intensity.
• High-Visibility Pointer Display Design: The energized wire frame deflects under the action of ampere force in a uniform magnetic field and balances with the horizontal component of gravity. The pointer amplifies the deflection angle on the dial, greatly improving the clarity of experimental phenomena.
• Necessary Pre-Experiment Calibration: The pointer needs to be calibrated to the zero scale position before formal use, so as to ensure the accuracy of deflection angle observation and experimental data recording.
• Reliable Contact Condition Assurance: Keep the three contacts of the wire frame in good contact with the terminal reeds. Polish the contact points with fine sandpaper if needed, and press the reeds properly to ensure normal conduction.
• Protective Handling During Transportation: Avoid collision and dropping during transportation to prevent deformation of the wire frame and pointer, as well as falling off of the magnetic needle, so as to maintain the integrity of the instrument.