LEY DE OHMNota. Para esta actividad debes tener instalada java en tu PC, descargarla gratis en www.java.comIngresa a la siguiente pgina web y experimenta con la ley de Ohm.

http://micro.magnet.fsu.edu/electromag/java/ohmslaw/

Modifica los valores del voltaje de la batera arrastrando la barra "Voltage", luego observa la lectura de los instrumentos, voltmetro (Volts) y ampermetro (Miliamps) y registra cinco valores en la siguiente tabla:

Intensidad de corriente

(miliamperios)0.490.610.700.820.93

Voltaje

(Voltios)49.861.370.58293.5

Ingresa tus datos en Excel, construye una grfica del voltaje vs. Intensidad de corriente, realiza una regresin lineal (lnea de tendencia en Excel), expresa la relacin matemtica del voltaje en funcin de la intensidad de corriente y elabora una conclusin, envala a travs de Ley de Ohm.

DESARROLLO

FUNCION :

CONCLUSION

Ohm's Law

Georg Simon Ohm (1787-1854) formulated the relationships among voltage, current, and resistance as follows:

The current in a circuit is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit.The circuit below demonstrates these relationships.

Click on the resistance slider to change resistors. Click on the voltage slider to adjust voltage of the variable power supply.Mathematically Ohm's law can be written as:

I = E/Rwhere I is current in amperes, E is the applied voltage in volts, and R is resistance in ohms.

This circuit contains an ammeter measuring current flow in milliamperes. Notice that as you increase voltage, current flow increases. As you increase resistance, current flow decreases.

It is important to note that resistance cannot be changed by changing voltage or current. Resistance in a circuit is a physical constant. Resistance in a circuit can only be changed by changing components or resistors rated at more or fewer ohms. The changing of resistance in this circuit simulates the physical changing of resistors with different ratings.

Discover how resistors are color coded in our Interactive Java Resistors Tutorial.BACK TO ELECTRICITY & MAGNETISM TUTORIALSQuestions or comments? Send us an email. 1995-2013 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.

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Last Modification: Friday, Feb 28, 2014 at 05:17 PM

Access Count Since April 14, 1999: 471502

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0.4949.8

0.6161.3

0.770.5

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Intensidad de corriente (miliamperios)

Voltaje (voltios)

VOLTAJE VS INTENSIDAD

Hoja1

Intensidad de corriente (miliamperios)0.490.610.70.820.93

Voltaje (voltios)49.861.370.58293.5

Hoja1

Intensidad de corriente (miliamperios)

Voltaje (voltios)

VOLTAJE VS INTENSIDAD