The thicker the copper wire, is the greater the characteristic impedance? The smaller the wire pitch, the smaller the impedance? The greater the wire resistance, the better or the smaller the better?
The unit of impedance is europe. Impedance is the sum of the resistance and reactance on the vector.
Different from the impedance circuit with resistance, resistance, inductance and capacitance, hinder the role of the AC impedance, the sinusoidal current circuit, current voltage dividing circuit through the blocking effect caused by general capacitance and inductance in the circuit reactance for alternating current.
The impedance according to the size of equipment, use: in audio equipment, and the design of loudspeaker amplifier impedance is 8 ohm impedance, the coaxial cable is 75, but also requires constant. The net seems to be 10 or 100, forget.
