12. Three-point charges Q₁₂ = -16 nC, Q₂ = +5 nC, and Q₂ = +30 nC are placed at the corners of the shown rectangle. The net electric potential (in V) at point (A) is: a) 36 b) 45 c) 54 d) 63 e) 72 4 m 3 m Q₁

12. Three-point charges Q₁₂ = -16 nC, Q₂ = +5 nC, and Q₂ = +30 nC are placed at the corners of the shown rectangle. The net electric potential (in V) at point (A) is: a) 36 b) 45 c) 54 d) 63 e) 72 4 m 3 m Q₁

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter7: Electric Potential

Section: Chapter Questions

Problem 5CQ: What is die strength of the electric field in a region where the electric potential is constant?

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Concept explainers

Dielectric Constant Of Water

Water constitutes about 70% of earth. Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.

Question

12. Three-point charges Q₁ = -16 nC, Q₂ = +5 nC, and Q3 = +30 nC are placed at the corners of the shown
rectangle. The net electric potential (in V) at point (A) is:
Q3
Q₂
a) 36
b) 45
c) 54
d) 63
e) 72
4 m
3 m

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