安培力演示器供高中物理教学用，能较好地演示磁场对电流的作用力，验证安培力公式F=ILBSinθ，同时也可验证左手定则。
J2447 Demonstrator power amp
Demonstrator power amps for high school physical education, to better demonstrate the magnetic field of the current force, the power amps to verify the formula F = ILBSinθ, verifiable as well as left-handed rule.
J2447 Demonstrator power amp
Demonstrator power amps for high school physical education, to better demonstrate the magnetic field of the current force, the power amps to verify the formula F = ILBSinθ, verifiable as well as left-handed rule.
