1. (a) What is the absolute potential at each of the following distances from a charge of +2.0 μC in air: r = 10 cm and r = 50 cm? (b) How much work is required to carry a 0.05-μC charge from the point at r = 50 cm to that at r = 10 cm?

University Physics Volume 2
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Chapter8: Capacitance
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Problem 70AP: A parallel-plate capacitor with capacitance 5.0F is charged with a 12.0-V battery, after which the...
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1. (a) What is the absolute potential at each of
the following distances from a charge of +2.0
μC in air: r = 10 cm and r = 50 cm? (b) How
much work is required to carry a 0.05-μC
charge from the point at r = 50 cm to that at r
= 10 cm?

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