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Voltage: Ohm's Law And Kirchhoff's Rules - Essays

Voltage: Ohm's Law And Kirchhoff's Rules

ABSTRACT
Ohm's Law and Kirchhoff's rules is fundamental for the understanding of
dc circuit. This experiment proves and show how these rules can be applied to
so simple dc circuits.

INTRODUCTION
In the theory of Ohm's Law, voltage is simply proportional to current as
illustrated in the proportionality, V=RI. As shown in this relation, V
represent voltage which is the potential difference across the two ends of a
electrical conductor and between which an electric current, I, will flow. The
constant, R, is called the conductor's resistance. Thus by the Ohm's Law, one
can determine the resistance R in a DC circuit without measuring it directly
provided that the remaining variable V and ...

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of parallel and series resistors can
be analyzed to find the current and voltage at each point of the circuit using 2
basic rules formulated by Kirchhoff. 1) The algebraic sum of current at any
branch point in a circuit is zero. 2) The algebraic sum of potential difference,
V, around any closed loop in a circuit is zero. These rules and equations
provided by the Ohm's law and the Kirchhoff rule can be experimentally tested
with the apparatus available in the lab

EXPERIMENTAL METHOD
The apparatus used in the experiment includes a Voltmeter, an Ammeter,
some connecting wires and a series of resistors and light bulb with varies
resistance. This experiment could be divided into 5 sections which value of
voltage and current measured is noted in all sections for further calculation.
In the first section, in order to evaluate the reliability of Ohm's law, a dc
circuit was constructed as FIG 2 (on p.4 ) using a resistor with an expected
resistance at 2400W*120W. In the ...

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Voltage: Ohm's Law And Kirchhoff's Rules. (2007, March 5). Retrieved December 23, 2024, from http://www.essayworld.com/essays/Voltage-Ohms-Law-And-Kirchhoffs-Rules/61302

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"Voltage: Ohm's Law And Kirchhoff's Rules." Essayworld.com. March 5, 2007. Accessed December 23, 2024. http://www.essayworld.com/essays/Voltage-Ohms-Law-And-Kirchhoffs-Rules/61302.

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PAPER DETAILS

Added: 3/5/2007 03:19:24 PM
Category: Science & Nature
Type: Free Paper
Words: 879
Pages: 4

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