Two identical positive charges are placed 10 cm apart. Halfway between the two charges the electric field is a) positive, b) negative, c) zero or d) depends on the size of the charge.
Two identical positive charges are placed 10 cm apart. Halfway between the two charges the electric field is a) positive, b) negative, c) zero or d) depends on the size of the charge.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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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 field is a) positive, b) negative, c) zero or d) depends on the size of the charge."
Transcribed Image Text:Two identical positive charges are placed 10 cm apart. Halfway between the two charges the
electric field is a) positive, b) negative, c) zero or d) depends on the size of the charge.
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Step 1
Concept:
The electric field of a point positive charge can be imagined as radial outward arrows with the charge at the center. In case of two positive identical charges placed at a distance of 10 cm apart, the electric will be essentially zero halfway between both charges. This is because the vector addition of bothe electric field will be zero as both the fields are equal in magnitude but opposite in direction. Mathematically, the electric field is given by,
E = k|q| / r2
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