Two positive charges are separated by a distance the z-axis, and the origin is at the midpoint between the two charges. Use vector calculus to determine the electric field at the point P a distance y along the negative y-axis. (i) (ii) (iii) (iv) (v) Draw a diagram of the setup and label the source, field and separation vectors (i.e. where are they on the diagram). Write down the source vectors. Write down the field vector. Write down the separation vector. Write down the magnitude of the separation vectors. (vi) Write down the unit vectors. (vii) What is the electric field for each charge? (viii) Use Principle of superposition to determine total electric field at point P.

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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.