Chapter 32
Alternating-Current Circuits
AC 소스
Direct current is a flow of electric charge in only one direction and has a steady state of constant voltage in the circuit. Rectifiers, batteries, ...
AC 회로의 RMS 값
The root mean square (RMS) value is a measure of the effective or average value of an alternating current (AC) waveform. In AC circuits, the voltage or ...
AC 회로의 저항기
An alternating emf or voltage source is needed to supply an alternating current (AC) to a circuit. A coil of wire rotating in a magnetic field at a ...
AC 회로의 커패시터
A capacitor is charged by passing an electric current through it, which causes the plates to start accumulating an electrostatic charge. Since the ...
AC 회로의 인덕터
The basic components of an inductor are coils or loops of wire that are either wound around a hollow tube former or a ferromagnetic material (iron-cored) ...
RLC 계열 회로: 소개
Consider an RLC series circuit consisting of a resistor, an inductor, and a capacitor connected to an AC voltage source. A current, which varies ...
RLC 계열 회로: 임피던스
When current flow is opposed in a DC or AC circuit, it is referred to as resistance or impedance, respectively. Impedance plays a key role in determining ...
RLC 직렬 회로: 문제 해결
Consider an AC generator with a frequency of 50 hertz and a voltage of 120 volts. The AC generator is connected to an RLC series circuit with a 20-ohms ...
AC 회로의 전력
In a DC circuit, the power consumed is simply the product of the DC voltage times the DC current, given in watts. However, the power consumed for AC ...
AC 회로의 공진
The property of an inductor makes it resist any change in the current passing through it, while the property of a capacitor is to build up the charge ...
트랜스 포 머
A device that transforms voltages from one value to another using induction is called a transformer. A transformer consists of two separate coils, or ...
변압기의 종류
Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
If the ratio of the number of turns in ...
변압기의 에너지 손실
In an ideal transformer, it is assumed that there are no energy losses, and, hence, all the power at the primary winding is transferred to the secondary ...
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