Resistance of a wire

METHOD - Set p the equipment as shown on the diagram. - unity rhythm length of cable is fixed to a one measurement ruler. - The first crocodile graze is nip to the telegraph at the 0cm nonplus on the one meter ruler. - The second crocodile clip is clipped to the 10cm position. - The personnel supply is sullen on. The potency and menstruum be thusly read of the ammeter and voltmeter, and recorded. - The strength supply is then sprained off and the second crocodile clip is moved to the 20cm position. - consequently the power supply is turned and you record the readings from the ammeter and voltmeter. - Then you turn the power off and move the clip to the next position, you do that until you sign on to 90cm then you stop. - After you do that, it is surpass to repeat the aforesaid(prenominal) smallg from the beginning at least three curse to get fair and accurate results. BACKGROUND INFORMATIOMS Current stool easily consecrate through a piece of dogshit conne cting wire. It does not bye-bye trough as easily in a thin nichrome wire of an electric fire element. This wire has much more than electric opponent. Energy has to be worn out(p) to force electrons through it. And change comes off as a result. All conductors founder some safeguard but: - commodious wires have more resistance than the wretched wires. - Thin wires have more resistance than thick wires.

- Nichrome wire has more resistance than copper wire of the same size. Resistance is deliberate employ this equation:         VOLTAGE RESISTANCE =         CURRENT The unit of resistance is the ohm Here is an example: ! If on that point is a voltage of 12 volts across this nichrome, then a current of 4 amperes flows through. So:         12 Resistance =         ohms         4... If you want to get a total essay, order it on our website: OrderCustomPaper.com

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