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6 电感和电容组成的串、并联电路6.1 电感与电容串联电路电感和电容组成的串联电路图6-1所示。因电路中只有电感和电容,所以,只存在感抗和容抗。其复阻抗为:Z=R+jX_L-jX_C。因R=0,所以 Z=jXL-jXc=j(X_L-X_C)。其模值:z=|X_L-X_C|。我们在介绍元件时已经谈过,电感的感抗是图6-1电感电容由于导线中的电流产生磁力线,串联电路磁力线反过来又切割导线而产生反电动势抵抗原电流变化的一种作用;容抗是由于静电感应使电容两
6 Inductance and capacitance consisting of a series, parallel circuit 6.1 Inductor and capacitor series circuit Inductance and capacitance of the series circuit shown in Figure 6-1. Because the circuit only inductance and capacitance, so there is only inductive and capacitive reactance. The complex impedance is: Z = R + jX_L-jX_C. Since R = 0, Z = jXL-jXc = j (X_L-X_C). Its modulus: z = | X_L-X_C |. We have talked about when introducing components, inductive inductance is Figure 6-1 Inductance and capacitance due to the current in the wire to produce magnetic lines of force, the series circuit magnetic line in turn cut the wire and back electromotive force to resist a change in the primary current; Resistance is due to electrostatic induction to make the capacitor two