Homopolar Motor
Assuming that the current flowing in the wire is in the X-direction, the magnetic field is in the Y direction. Then, what direction is the electromagnetic force? ‘Homopolar motor’ refers to a motor operated by using … more
Electricity & Magnetism Simulation
Modulation of AM and FM radio
* Above simulation adjusted the amplitude and wavelength for easy observation. * For your understanding, the frequency modulation range of FM broadcasts is exaggerated. Radio frequency The audible frequency is commonly referred to as ‘sound.’ Sound’s … more
Electric Transformer
* We assume an ideal transformer where the excitation current is “0”. Electric transformer A transformer is a device for simply changing the voltage of an alternating voltage (AC). Transformers make it easy to change the … more
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 one bulb breaks, the … more
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 used in alternating current(AC) … more
Parallel Circuit
Parallel Circuit is a closed circuit in which the current follows more than one pathway. In a parallel circuit, if one bulb breaks, the bulbs in the other branch stay on. In a parallel circuit, the … more
Serial Parallel Circuit
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 one bulb breaks, the … more
Charge Conservation
In the serial circuit, The current is the same everywhere. In the parallel circuit, The current splits up when it comes to a branch. The current in all the branches adds up to the current in … more
Electroscope
Electroscope Using an electroscope, you can determine whether an object is charged or the polarity of the charge. When the (+) charged body is close to the metal plate, the metal foil’s free electrons are attracted … more
Electrostatic Induction
What happens when the charged body is close to the conductor? Electrostatic induction is a redistribution of electrical charge in an object caused by the influence of nearby charges. In the presence of a charged body, … more
Electrostatic induction (the viewpoint of metal bonding)
What happens when the charged body is close to the conductor? Electrostatic induction is a redistribution of electrical charge in an object caused by the influence of nearby charges. In the presence of a charged body, … more