A point charge is an idealized model of a particle which has an electric charge.

WEB Charge Q functions as a point charge to make an electric field.

Charge Q acts as a point charge to create an electric field.

Charge Q functions as a point charge to make an electric field.

For example, in the presence of the charge q {\displaystyle ~q}

The force acting on a point charge due to a system of point charges is simply the vector addition of the individual forces acting alone on that point charge due to each one of the charges.

The force acting on a test charge due to a system of point charges is simply the vector addition of the individual forces acting alone on that test charge due to each one of the charges.

A point charge Q located at the origin (r = 0) produces an electric potential:

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The present invention pertains to a complex pile with an improved end bearing capacity and a piling method of a complex pile using the same.

New agreement will share provincial gaming revenue with First Nations

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its self-weight which is not small, and then I exert on it an additional concentrated

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Polynomial propagation of moments and global existence for a Vlasov–Poisson system with a point charge