A negative point charge q1 = 25 nC is located on the y axis at y = 0 and a positive point charge q2 = 10 nC is located at y =14 cm. Find the

Question

A negative point charge q1 = 25 nC is located on the y axis at y = 0 and a positive point charge q2 = 10 nC is located at y =14 cm. Find the y coordinate of the points where the net electric potential due to these two charges is zero.

in progress 0
RI SƠ 6 months 2021-07-12T12:10:04+00:00 1 Answers 9 views 0

Answers ( )

    0
    2021-07-12T12:11:06+00:00

    Answer:

     y = 0.1 m

    Explanation:

    The electrical power for point loads is

             V = k \sum \frac{q_i}{r_i}k Sum qi / ri

    in this case

             V = k (- \frac{q_1}{r_1 } + \frac{q_2}{r_2})

    indicate that V = 0

            \frac{q_1}{r_1} = \frac{q_2}{r_2}

            r₂ = \frac{q_2}{q_1} r_1

    the distance r1 is

             r₁ = y -0

    the distance r2

             r₂ = 0.14 -y

    we substitute

           

            0.14 – y = \frac{10}{25}  y

              y ( \frac{10}{25} + 1) = 0.14

              y 1.4 = 0.14

              y = 0.14 / 1.4

              y = 0.1 m

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )