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Electric potential allows us to think about E-fields and forces in terms of energy, just like gravitational potential energy did for gravitational fields. This way, the Work-Energy Theorem can be used to answer many different kinds of problems. But how is potential different from the E-field? A.) One of the most important differences is direction. The electric field has a direction, potential does not. Place two positive (+) charges 400 cm apart on a horizontal line (make sure the arrows are horizontal in-between the charges). Now, place a sensor directly in the middle of these two charges along the horizontal line. What is the reading? O V/m B.) Now place the voltage measuring tool at the same place. What is the reading? C.) Now to further illustrate this point, change one of the positive (+) charges with a negative (-) charge. What are the two readings now? sensor reading = voltage measuring tool reading = Potential is a scalar. When we deal with potential, we don't have to worry about direction. Therefore, when solving problems, it's always best to try an energy method first. It usually reduces the amount of work needed to be done to solve the problem. D.) What form does potential take for a point charge? Like in the E-fields section, measure the voltage at 50 cm steps along the horizontal from the center of a single positive (+) charge (you will need at least 6 steps). Graph this data in Google Sheets, and find the power series trendline formula. To what power is the variable raised? This is slightly different than E-Fields.

Electric potential allows us to think about E-fields and forces in terms of energy, just like gravitational potential energy did for gravitational fields. This way, the Work-Energy Theorem can be used to answer many different kinds of problems. But how is potential different from the E-field? A.) One of the most important differences is direction. The electric field has a direction, potential does not. Place two positive (+) charges 400 cm apart on a horizontal line (make sure the arrows are horizontal in-between the charges). Now, place a sensor directly in the middle of these two charges along the horizontal line. What is the reading? O V/m B.) Now place the voltage measuring tool at the same place. What is the reading? C.) Now to further illustrate this point, change one of the positive (+) charges with a negative (-) charge. What are the two readings now? sensor reading = voltage measuring tool reading = Potential is a scalar. When we deal with potential, we don't have to worry about direction. Therefore, when solving problems, it's always best to try an energy method first. It usually reduces the amount of work needed to be done to solve the problem. D.) What form does potential take for a point charge? Like in the E-fields section, measure the voltage at 50 cm steps along the horizontal from the center of a single positive (+) charge (you will need at least 6 steps). Graph this data in Google Sheets, and find the power series trendline formula. To what power is the variable raised? This is slightly different than E-Fields.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Electric potential allows us to think about E-fields and forces in terms of energy, just like gravitational potential energy did for gravitational fields. This way, the Work-Energy Theorem can be used to answer many different kinds of problems. But how is potential different from the E-field? A.) One of the most important differences is direction. The electric field has a direction, potential does not. Place two positive (+) charges 400 cm apart on a horizontal line (make sure the arrows are horizontal in-between the charges). Now, place a sensor directly in the middle of these two charges along the horizontal line. What is the reading? O V/m B.) Now place the voltage measuring tool at the same place. What is the reading? C.) Now to further illustrate this point, change one of the positive (+) charges with a negative (-) charge. What are the two readings now? sensor reading = voltage measuring tool reading = Potential is a scalar. When we deal with potential, we don't have to worry about direction. Therefore, when solving problems, it's always best to try an energy method first. It usually reduces the amount of work needed to be done to solve the problem. D.) What form does potential take for a point charge? Like in the E-fields section, measure the voltage at 50 cm steps along the horizontal from the center of a single positive (+) charge (you will need at least 6 steps). Graph this data in Google Sheets, and find the power series trendline formula. To what power is the variable raised? This is slightly different than E-Fields. E.) Now, make sure you only have a single positive charge (+) in the simulation window. Also, make sure it is set so that you have a line of horizontal arrows. Place the voltage tool 100 cm away from the positive charge (+) along the horizontal line and press the pencil.button..This should draw a circle around the charge. What is the voltage at the point? Enter a number with units.
Transcribed Image Text:Electric potential allows us to think about E-fields and forces in terms of energy, just like gravitational potential energy did for gravitational fields. This way, the Work-Energy Theorem can be used to answer many different kinds of problems. But how is potential different from the E-field? A.) One of the most important differences is direction. The electric field has a direction, potential does not. Place two positive (+) charges 400 cm apart on a horizontal line (make sure the arrows are horizontal in-between the charges). Now, place a sensor directly in the middle of these two charges along the horizontal line. What is the reading? O V/m B.) Now place the voltage measuring tool at the same place. What is the reading? C.) Now to further illustrate this point, change one of the positive (+) charges with a negative (-) charge. What are the two readings now? sensor reading = voltage measuring tool reading = Potential is a scalar. When we deal with potential, we don't have to worry about direction. Therefore, when solving problems, it's always best to try an energy method first. It usually reduces the amount of work needed to be done to solve the problem. D.) What form does potential take for a point charge? Like in the E-fields section, measure the voltage at 50 cm steps along the horizontal from the center of a single positive (+) charge (you will need at least 6 steps). Graph this data in Google Sheets, and find the power series trendline formula. To what power is the variable raised? This is slightly different than E-Fields. E.) Now, make sure you only have a single positive charge (+) in the simulation window. Also, make sure it is set so that you have a line of horizontal arrows. Place the voltage tool 100 cm away from the positive charge (+) along the horizontal line and press the pencil.button..This should draw a circle around the charge. What is the voltage at the point? Enter a number with units.
G.) Why does knowing potential matter? Because a potential difference is analogous to a pressure difference. So long as you have one, charge will flow. This is then related to have much work can be done; and remember that work is very abstract in this sense. We could calculate the energy needed to do literally anything, and that would tell us the energy requirements that any device designed to accomplish the task would have to satisfy. Doing something similar to Physics 1, take a positive charge (+) and place it alone in the middle of your simulation making sure you have a line of horizontal arrows. Now place equipotential lines at 100 cm intervals from the center of the positive charge (+). What is the potential difference between between the first two equipotential lines? H.) How much work would be done if a positive test charge (+), with q = +1 nC, moved from the first equipotential line to the second?
Transcribed Image Text:G.) Why does knowing potential matter? Because a potential difference is analogous to a pressure difference. So long as you have one, charge will flow. This is then related to have much work can be done; and remember that work is very abstract in this sense. We could calculate the energy needed to do literally anything, and that would tell us the energy requirements that any device designed to accomplish the task would have to satisfy. Doing something similar to Physics 1, take a positive charge (+) and place it alone in the middle of your simulation making sure you have a line of horizontal arrows. Now place equipotential lines at 100 cm intervals from the center of the positive charge (+). What is the potential difference between between the first two equipotential lines? H.) How much work would be done if a positive test charge (+), with q = +1 nC, moved from the first equipotential line to the second?
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