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Electroatatics and Lighting force.

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Please give a brief explanation.

B. Where would a positive test charge have the least potential energy?

C. How much energy must you add to the system to move 1 electron 1 m in a direction along one of the equal potential lines?

D. If lightning strikes a tree 20 m away would you be better to stand facing the tree, your back to the tree, or your side to the tree. Assume your feet are a comfortable shoulder width apart. Explain your answer.

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Solution Summary

The concepts for the potential and equipotentials are discussed. How to face electric lighting is also discussed.

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Please see the attached file.

B. Where would a positive test charge have the least potential energy?

A positive point charge will have positive (more then zero) potential energy only in an external electric field. If there will be no electric field at a point, the potential energy of the charge will be zero.

The potential energy of a positive charge will be negative (less then Zero) in the attractive field, or the field due to a negative charge.

Hence a positive charge ...

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