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anonymous

  • 5 years ago

Consider the following graph of an electric field, is it possible to tell which charge is positive and which is negative just from the graph

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  1. anonymous
    • 5 years ago
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    |dw:1326986984576:dw|

  2. anonymous
    • 5 years ago
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    Assume the left most charge is the test charge rated at 1c

  3. JamesJ
    • 5 years ago
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    If the electric field lines are behaving like that, the two charges have the same sign. Hence if you know the left most charge is positive, the right most must be also. If the electric charges had opposite signs, there would be electric field lines running between the charges.

  4. anonymous
    • 5 years ago
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    If I don't know the charge of either can I tell if it is or not?

  5. JamesJ
    • 5 years ago
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    No, they could be both positive or both negative.

  6. anonymous
    • 5 years ago
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    Thanks

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