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１实验仪器 带直流放大器的灵敏电流计（自制），蹄形磁铁，导磁率良好的磁封闭片一片，线框一只．２实验过程 演示实验１：按图１进行实验，表明只有导体作切割磁感线运动时，电路中才有感应电流 学生：通过直接观察，得出感应电流的产生条件：闭合电路中的一部分导体在磁场中
1 experimental equipment Sensitive current meter with DC amplifier (self-made), shoe-shaped magnets, magnetic permeability of a piece of good magnetic permeability, a wire frame. 2 experimental process demonstration experiment 1: According to Figure 1, the experiment shows that only the conductor for cutting magnetic induction line motion, the circuit inductive current students: through direct observation, the induced current generation conditions: a part of the closed circuit conductor In the magnetic field