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Particle Physics

What is an electric monopole?


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Wiki User
2007-05-16 02:14:10
2007-05-16 02:14:10

A single point charge, may be positive or negative.

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The simple answer: the potential at a point some distance, r from a monopole is kQ / r, where k is Coulumb's constant: 9.0E9 Q is the charge of the monopole and r is the distance from the monopole. And how to get there: Since electric force is kq1q2/ r2, the electric field ( Force per charge) is kQ/r2. The voltage of a particle is defined to be the integral of the electric field with respects to r. Thus integrating you get the above equation.

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The radiation resistance of quarter wave monopole is 36.5 ohms

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Nothing in physics really says that there can not be a magnetic monopole. However one has never been observed experimentally.

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Magnetic field lines must be closed. There is no such thing as a magnetic monopole. A magetic field line might be very long but eventually it will bend aroung forming a closed loop. Electric field lines can originate from a point (hence they are open). A charge (like an electron) is a electric monopole. They show which way iron shavings would align themselves. They always form complete loops. They show which way iron shavings would align themselves. (APEX)

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The radiation resistance of a quarter wave monopole over a ground plane is 36.5 ohms.


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