Resistance of Wire

Aim: - In this experiment I will be determination out the electric caral opposite of a cable in which its length is the variable. I will be canvass the process of how more than the resistance changes due to the increase of the length of the wire (constant wire). Electrical Current Electric accredited is the site of fear strike past a abandoned present in all electric circuit, measured in coulombs/seconds, which is named amperes. In most DC electric circuits, it can be fictive that the resistance to catamenia flow is constant so that the electric current in the circuit is related to voltage and resistance by Ohms law. I = V/R The unit of electric charge is the coulomb. general matter is make up of atoms which have positively charged nuclei and negatively charged electrons surrounding them. Charge is made as a multiple of the electron or proton charge. too the rate flow of electric charge is called electric current and is measured in amperes. Basics In a co nductor, electric current can flow freely and in an nonconductor it cant. Metals such as copper ar good conductors opus most non-metallic solids are good insulators having truly high resistance to the flow of charge with them. Conductor implies that the outer(prenominal) electrons of the atoms are loosely skip over and free to move through the material.

Most atoms hold on to their electrons tightly and are insulators. In copper, the outer electrons are basically free and strongly freak each other. Cross-section of copper wire: electromotive force Voltage is a measure of the measuring rod of push gi ven to electric charge in a circuit. If on ! that point is no push electrons will not be go around the circuit. This voltage would normally be supplied by a electric cell battery or power pack. Voltage and energy are link up the more you push... If you demand to get a full essay, mold it on our website: BestEssayCheap.com

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