![Wireless powering of single-chip systems with integrated coil](http://s1.studyres.com/store/data/006953275_1-f39b9ae5c3bb40dbd79b256eed02c8f4-300x300.png)
LEP 4.4.03 Inductance of solenoids
... As a difference in length also means a difference in the number of turns, the relationship between inductance and number of turns found in Problem 1 must also be used to solve Problem 2. Notes The distance between L1 and L should be as large as possible so that the effect of the excitation coil on t ...
... As a difference in length also means a difference in the number of turns, the relationship between inductance and number of turns found in Problem 1 must also be used to solve Problem 2. Notes The distance between L1 and L should be as large as possible so that the effect of the excitation coil on t ...
9. electromagnetic induction
... in the form of heat energy. This loss of energy is known as copper loss. To minimise this energy loss the primary and secondary coils are made of thick copper wire. 63. Magnetic flux leakage : Some magnetic flux leaks in air between primary and secondary. Hence the flux produced in the primary does ...
... in the form of heat energy. This loss of energy is known as copper loss. To minimise this energy loss the primary and secondary coils are made of thick copper wire. 63. Magnetic flux leakage : Some magnetic flux leaks in air between primary and secondary. Hence the flux produced in the primary does ...
Ignition system
![](https://commons.wikimedia.org/wiki/Special:FilePath/Magnetzuend.jpg?width=300)
An ignition system is a system for igniting a fuel-air mixture. Ignition systems are well known in the field of internal combustion engines such as those used in petrol (gasoline) engines used to power the majority of motor vehicles, but they are also used in many other applications such as in oil-fired and gas-fired boilers, rocket engines, etc.The first ignition system to use an electric spark was probably Alessandro Volta's toy electric pistol from the 1780s. Virtually all petrol engines today use an electric spark for ignition.Diesel engines rely on air compression for ignition, but usually also have glowplugs that preheat the combustion chamber to allow starting of the engine in cold weather. Other engines may use a flame, or a heated tube, for ignition.