Electricity & Magnetism Simulation

직류 전동기 DC Motor

DC Motor

Motor An electric motor is a device that converts electrical energy into mechanical energy by utilizing the force received by a conductor through which a current flows in a magnetic field. Electric…
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Homopolar Motor

Homopolar Motor

The current flowing in the wire is in the X direction and the magnetic field is in the Y direction. In what direction is the electromagnetic force? ‘Homopolar motor’ refers to a…
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전자기력, 로렌츠 힘 3D

Lorentzs Force (Electromagnetic swing)

Direction of the Lorentz force Conductors in which current flows in a magnetic field, are forced to move. The direction of this force is perpendicular to the current and the magnetic field…
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AM, FM 라디오의 변조

Modulation of AM and FM radio

* The amplitude and wavelength were arbitrarily adjusted to see it easily. * For your understanding, the frequency modulation range of FM broadcasts is exaggerated. Radio frequency The audible frequency, commonly referred…
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변압기 Electric Transformer

Electric Transformer

* We assume an ideal transformer where the excitation current is “0”. A transformer is a device for simply changing the voltage of an alternating voltage. Transformers make it easy to change…
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스피커 Speaker


A changing electrical signal is fed to the voice coil of a loudspeaker, which lies within the magnetic field of a permanent magnet. The signal in the coil causes it to behave…
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Serial Parallel Circuit 2

In parallel circuit, The current splits up when it comes to a branch. The current in all the branches adds up to the current in the main part of the circuit. If…
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트랜지스터 Transistor 2

Transistor application circuit

The above simulation is based on a circuit that actually works. The transistor uses C1815(general-purpose NPN switching transistor). The resistance connected to the base is 100kΩ, and the resistance connected to the…
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인덕터 응용 회로

Inductor application circuit

An inductor, also called a coil, choke or reactor, is a passive two-terminal electrical component that stores electrical energy in a magnetic field when electric current flows through it. Inductors are widely…
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코일 주위의 자기장 Magnetic Field around a Coil

Magnetic Field around a Coil

Magnetic field created by electric current Magnetic field is the area surrounding a magnet in which the magnetic force exists. The magnetic field is also formed around the conductor through which the…
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LC 필터 LC Filter

LC Filter

Expect a waveform through the filter. You can see the answer by clicking on the black question mark button. Caution! Do not try to see the answer immediately. LC Filter LC filter…
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병렬 회로의 이해 Parallel Circuit

Parallel Circuit

Parallel Circuit is a closed circuit in which the current follows more than one pathway. In parallel circuit, if one bulb breaks, the bulbs in the other branch stay on. In parallel…
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