Use the following constants if necessary. Coulomb constant, k = 8.987 × 10º N - m² /C². Vacuum permitivity, ca of the Charge of one electron, e = –1.60217662 × 10-19 C. Mass of one electron, m. = 9.10938356 × 10-31 symbol carries their usual meaning. For example, µC means micro coulomb. a i a 93 b
Use the following constants if necessary. Coulomb constant, k = 8.987 × 10º N - m² /C². Vacuum permitivity, ca of the Charge of one electron, e = –1.60217662 × 10-19 C. Mass of one electron, m. = 9.10938356 × 10-31 symbol carries their usual meaning. For example, µC means micro coulomb. a i a 93 b
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Transcribed Image Text:Use the following constants if necessary. Coulomb constant, k = 8.987 × 10º N · m²/C². Vacuum permitivity, €o = 8.854 × 10–12 F/m. Magnitude
of the Charge of one electron, e = -1.60217662 × 10-19 C. Mass of one electron, me = 9.10938356 x 10-31 kg. Unless specified otherwise, each
symbol carries their usual meaning. For example, µC means micro coulomb .
a
92
93
Transcribed Image Text:a) Calculate how much work is required to set up the arrangement if the charges are initially infinitely far apart and were at rest. (Hint: Use the relation
between work done by external agent and total electric energy of the system) Here a = 20 cm, b = 10 cm and the three charges are ql = 21 µC,
q2-21 μCg337 μC
Work done
Give your answer to at least three significance digits.
joules
b) Calculate the potential at the controid(point p) of the triangle.
Potential at the centroid
Give your answer to at least three significance digits.
volts
c) Consider a spherical surface of radius r = 5a centered at p. Find the total electric flux through the surface.
Total Electric Flux
Give your answer to at least three significance digits.
N. m? /C
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