e305 Electric Fields and Equipotential Lines
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E305 ELECTRIC FIELDS AND EQUIPOTENTIAL LINES ANALYSIS 1. As you move away from the positive terminal, what happens to the voltage reading? What does this mean? Electric potential energy has a dependency upon the charge of the object experiencing the electric field; electric potential is purely location dependent. Knowing that a positive test charge would be at a lower electric potential when held further away and the voltage is the difference in potential energy between two points. So as the distance increases, potential decreases then the difference in potential or voltage would increase. 2. In Part I, is the line that passes through x = 14 an equipotential line? Why or why not? 3. In Part II, why must the outer circle be drawn using the silver ink? This means that the electric lines are trapped inside the guard ring. The reason for this is that the guard ring can conduct electricity since it is made up silver. As we increase the distance from the point source, the voltage decreases. CONCLUSION 1. What is the meaning of potential difference between two points in an electric field? 2. In an electric field, an electric charge is released from rest. Describe the motion of this charge. 3. Describe the relationship between equipotential lines and electric field. Electric field is generated by the presence of electrically charged particles or electrostatic force. While equipotential lines are defined as where every point has equal amount of electric potential. We must also remember that equipotential lines are always perpendicular to its electric field. 4. Is it possible for two equipotential lines to intersect? Defend your answer.
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Transcript of e305 Electric Fields and Equipotential Lines
E305 ELECTRIC FIELDS AND EQUIPOTENTIAL LINESANALYSIS1. As you move away from the positive terminal, what happens to the voltage reading? What does this mean?
Electric potential energy has a dependency upon the charge of the object experiencing the electric field; electric potential is purely location dependent. Knowing that a positive test charge would be at a lower electric potential when held further away and the voltage is the difference in potential energy between two points. So as the distance increases, potential decreases then the difference in potential or voltage would increase.
2. In Part I, is the line that passes through x = 14 an equipotential line? Why or why not?
3. In Part II, why must the outer circle be drawn using the silver ink? This means that the electric lines are trapped inside the guard ring. The reason for this is that the guard ring can conduct electricity since it is made up silver. As we increase the distance from the point source, the voltage decreases.CONCLUSION1. What is the meaning of potential difference between two points in an electric field?2. In an electric field, an electric charge is released from rest. Describe the motion of this charge.3. Describe the relationship between equipotential lines and electric field.
Electric field is generated by the presence of electrically charged particles or electrostatic force. While equipotential lines are defined as where every point has equal amount of electric potential. We must also remember that equipotential lines are always perpendicular to its electric field.
4. Is it possible for two equipotential lines to intersect? Defend your answer.
It is not possible for the equipotential lines to intersect each other, since they all follow the law of conservation of charge in which they must trade their charge to attain a new one.
RESEARCH/APPLICATIONS
1. Electric Motors
Electric field,anelectricproperty associated with each point in space when chargeis present in any form. The magnitude and direction of the electric field are expressed by the value ofE, calledelectric field strengthor electricfield intensity or simply the electric field. Knowledge of the value of the electric field at a point, without any specific knowledge of what produced the field, is all that is needed to determine what will happen to electric charges close to that particular point. In the discussion of electric fields one can easily grasp its importance in our modern life from the compass used by early travellers to the technology used in our VCRs. One example of which is electric motors,
Anelectric motoris anelectrical machinethat convertselectrical energy into mechanicalenergy. The reverse of this would be the conversion ofmechanical energyintoelectrical energyand is done by angenerator. In normal motoring mode, most electric motors operate through the interaction between an electric motor'smagnetic fieldandwinding currentsto generate force within the motor. In certain applications, such as in the transportation industry withtraction motors, electric motors can operate in both motoring andgenerating or brakingmodes to also produce electrical energy from mechanical energy. Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered bydirect current (DC)sources, such as from batteries, motor vehicles or rectifiers, or by alternatingsources, such as from the power grid,invertersor generators. Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression andpumped-storageapplications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.
REFERENCEShttp://www.britannica.com/EBchecked/topic/182416/electric-chargehttp://en.wikipedia.org/wiki/Electric_motor
