论文部分内容阅读
1 利用 E=(n△φ/△t)由闭合电路欧姆定律得 I=E/(R+r),由法拉第电磁感应定律得 E=n(△φ/△t),所以有q=I△t=n(△φ/R+r).此式表明,电磁感应现象中通过导体的电量只跟穿过闭合回路的磁通量的变化量及回路电阻有关。
1 using E = (n △ φ / △ t) by the closed circuit Ohm’s law I = E / (R + r), by Faraday’s law of electromagnetic induction E = n (△ φ / △ t), so there q = I Δt = n (△ φ / R + r). This formula shows that the amount of electricity passing through the conductor in the electromagnetic induction phenomenon is only related to the amount of magnetic flux passing through the closed loop and the loop resistance.