(a) 4.0cm (b) 1.0cm + 2.5 C rod 3.5 cm -2.5 C +++ There is a...
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(a) 4.0cm (b) 1.0cm + 2.5 C rod 3.5 cm -2.5 C +++ There is a polarization / separation of charge in a 3.5 cm long rod (which we will consider one dimensional (and assume that all charge is at the very tips of the rod)). Point b In space is located 1.0 cm from the left end of the rod, and point a in space is located 4.0 cm left of point b. a. What is the VOLTAGE between points a and b? Hint: voltage is potential difference. Hint on the hint: Use an equation for potential to find the potential at each point, and then take the difference between those two potentials. Another hint: the potential at elther point will be the sum of the two potentials created by the two 2.5 micro Coulomb charges. b. c. If a positive charge of 1.0 C moved from b to a, would Its potential Increase or decrease or stay the same? Would Its potential energy increase, decrease, or stay the same (hint: Is It "falling?") Compare the changes a 2.0 C charge would experience compared to a 1.0 C charge. Would a 2.0 C charge experience more, less, or the same change of potential in the space It occuples when moving from b to a, compared to the 1.0 C charge? Would a 2.0 C charge experience more, less, or the same change of potential ENERGY when moving from b to a, compared to the 1.0 C charge? Support your answer to the energy part by citing an equation. d. Now a negative charge moves from b to a. Think about the change In potential It experiences between those two places. Is this change positive, negative, or O? Is Its change in potential ENERGY positive, negative, or 07 (Hint: Is It "falling" or "rising?") (a) 4.0cm (b) 1.0cm + 2.5 C rod 3.5 cm -2.5 C +++ There is a polarization / separation of charge in a 3.5 cm long rod (which we will consider one dimensional (and assume that all charge is at the very tips of the rod)). Point b In space is located 1.0 cm from the left end of the rod, and point a in space is located 4.0 cm left of point b. a. What is the VOLTAGE between points a and b? Hint: voltage is potential difference. Hint on the hint: Use an equation for potential to find the potential at each point, and then take the difference between those two potentials. Another hint: the potential at elther point will be the sum of the two potentials created by the two 2.5 micro Coulomb charges. b. c. If a positive charge of 1.0 C moved from b to a, would Its potential Increase or decrease or stay the same? Would Its potential energy increase, decrease, or stay the same (hint: Is It "falling?") Compare the changes a 2.0 C charge would experience compared to a 1.0 C charge. Would a 2.0 C charge experience more, less, or the same change of potential in the space It occuples when moving from b to a, compared to the 1.0 C charge? Would a 2.0 C charge experience more, less, or the same change of potential ENERGY when moving from b to a, compared to the 1.0 C charge? Support your answer to the energy part by citing an equation. d. Now a negative charge moves from b to a. Think about the change In potential It experiences between those two places. Is this change positive, negative, or O? Is Its change in potential ENERGY positive, negative, or 07 (Hint: Is It "falling" or "rising?")
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Financial Accounting and Reporting
ISBN: 978-0273744443
14th Edition
Authors: Barry Elliott, Jamie Elliott
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