BASIC KNOWLEDGE electricity

Understanding electricity

In the electricity will be generated by static electricity generated by rubbing a glass, think of it as a magic item from it then a lot of theories that grew and now the theory is accepted and is called "electron theory" that arose around 1900. The end of the eighteenth century when it was first discovered by a power source that Galvani Volta possible to study the effect of kelistrikannya regulated by specific laws that may be to quantify the effect. An electric current can be equated with a liquid in a pipe when a conductor is connected to the pole-pole current source. Electric current is the flow of electricity flowing through the conductor and consumer-consumer on a closed circuit. Electric current effect in the conductor and the consumer. Current direction The direction of electric current flowing from the pole-pole through a series of positive electricity to the negative pole. Current direction contrary to the flow of electrons in accordance with the theory of electron motion from the negative pole through the electrical circuit to the positive pole. To note that when an electric current flows in one direction so that together with electrons flow the opposite direction. As a result of electricity 1. Heat effect A wire when the current route will be hot. On the effects of motor vehicle technology, this heat is used for example in incandescent spark plugs for diesel motors, electric heaters vehicle rear window, cigarette and heating coils in which the incandescent filament is heated to a high temperature so as to remove the light. 2. Magnetic effects of electricity The electric current flowing through a conductor in a magnetic field created around the conductor, this vehicle component dimanfatkan, for example: regulator, stater relay, ignition coil and sebaginya. 3. Chemical effects of electricity An electric current causes a reaction when the flow through an electrolyte, such as liquid oxygen or salt. The vehicle battery is a component of chemical effects caused by electricity, the electric current on the battery caused by a chemical reaction. Direct current (DC) and the flow back and forth (AC) Direct current (DC) is a type of current that always has the same direction of current through an electric circuit, it is a situation where a power source in a series of poles that have not changed the direction of producing voltage (DC). Alternating current (AC) is a type of flow that has alternating directions because the source of electric current produces a voltage alternating current source of electricity for producing alternating voltage (alternating voltage). Electrical systems in motor vehicles using direct current, the electricity comes from alternating current by using the "inverter". On motor vehicles using the AC generator (alternator) needs to change alternating current if the alternator as used on these vehicles. Magnetism Magnetism is the nature of the magnetic and electric currents can produce a force field, the magnetic properties is able to pull things (iron), magnetism required for the starter generator and other components. 1. Permanent Magnet (Fixed) All magnets have north and south poles, the field consists of magnetic force lines of magnetic force that ad between the poles of magnetic force lines, starting from the magnetic north pole to south pole magnets. Compass needle indicates the direction of lines of force. Among the magnetic poles of the U field is more concentrated force because the distance between the poles shorter. The more narrow the distance between the magnetic pole concentrated magnetic force field. 2. Electromagnet A conductor of a current which is surrounded by a magnetic field with lines of force uniformly along the conductor around. Conductor has no north and south poles. The lines of work force to the upper-right corner is used as conductor for current measurement on the starter cord, a simple ammeter, starter current indicators are placed outside the wire and the magnetic field moving the instrument. Direction of movement of lines of force around the conductor can be determined by using a variety of conditions (rules). One of the spiral path is the rule and field arh bersaman style with putarn right direction from the direction of current in the conductor. 3. Magnet effects When two permanently stationed megnet opposite poles, the magnet will attract each other iotu. If the magnet was removed with fellow polar magnet will reject each other (separate). Opposite poles attract, the namesake poles repel. 4. The influence of the forces in the conductor currents When the current flows in the opposite direction on two parallel wires, the lines of force leads to a place that delivered sam and Childrens magnetic conductor will be tense, the magnetic field conductor-conductor refused it. These symptoms are used on all electric motors, which is conducting the magnetic field between two poles, and given that the flow of the conductor will move. Several parallel conductor carrying current in one direction, making a general magnetic field, like many of the components. As examples of such a coil on the ignition coil, coil shoes at the DC generator, the coils at a alternator generator. 5. Magnetic field around the coil Magnetic field will be generated around the coil through the current rolls, coil it has north and south poles like a permanent bar magnet, the poles of the coil's (coil) depending on the direction of flow and can be determined using the right-hand arguments. Hold the coil in the right hand, the fingers indicate the direction and flow of the thumb indicates the north pole. If a piece of iron is used as the core software that kunparan strong magnetic field increased several hundred times, because the iron core of a good conductor for lines of magnetic force, while the air is not a good conductor. Electric magnetic field strength depends on the number of windings on the coils and the amount of current through the coil it. Electricity Instruments Here there are three types of instruments, namely 1. Moving coil instrument 2. Moving iron instrument 3. Moving magnet instrument Further explanation is as follows: a) Moving coil instrument Moving coil instrument is a rectangular coil placed on an axis with a bearing that can rotate in between the poles of a magnet, attached to the needle axis, and if there is no voltage to the instrument pointer is at position 0 (zero) caused by the spring rolls ( coil spring). Flow from the positive pole to the moving coil through the spring rolls. Magnetic field generated around the moving coil associated with the magnetic field force between the magnetic poles, causing moving coil moving. Such instruments are widely used in vehicle testing equipment. As with moving coil voltmeter instrument, the instrument is equipped with series resistors connected to the prisoner calculated in relation to prisoners moving coil. b) Moving Iron instruments Moving iron instrument which has a coil megnetnya field effect to a soft iron Vane, Vane was placed on the axis of the needle and pulled a small further increase if the current large-scale irregular due to the magnetic state. The first part of the scale with a short-distance division, this instrument is suitable for DC and AC currents. c) Moving Magnet instrument Vane of a soft metal attached to the needle axis and placed between the magnetic poles hoof. Armature position is determined by the field of magnetic force and magnetic field which is generated by the current through the coil. When current flows through the coil it will spin Vane and distorted currents. The instrument is used amperemeter As with electrical systems, he showed charge (fill) or not a charge but it was not a precision instrument. This is a reading for friends who want to know about a little about electricity. good luck.