When can an electric field be measured at any point from the force on a stationary test charge at that point?

Question

When can an electric field be measured at any point from the force on a stationary test charge at that point?

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Orla Orla 6 months 2021-08-19T19:35:03+00:00 1 Answers 0 views 0

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    2021-08-19T19:36:48+00:00

    Answer:

    Electric field be measured at any point from the force on a stationary test charge at that point, when the force on the test charge is generated only by the coulomb field (E) of static charges.

    Explanation:

    Total force on a test charge is given as;

    F = qE + q(V x B)

    F = q(E + V x B)

    Where;

    F is the total force on the test charge

    q is the test charge

    E is the electric field

    B is the magnetic field

    V is the velocity of the test charge

    F = q(E + V x B)

    for a stationary test charge, V = 0

    The equation above reduces to;

    F = qE

    Thus, electric field be measured at any point from the force on a stationary test charge at that point, when the force on the test charge is generated only by the coulomb field (E) of static charges.

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