Physics, 09.04.2020 10:46 hebiancao

In the diagram, q1 = -6.3910^-9 C and q2 = +3.2210^-9 C. What is the electric field at point P? Include a + or - sign to indicate the direction.

In the diagram, q1 = -6.39*10^-9 C and q2 = +3.22*10^-9 C. What is the electric field at point P? In

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Answer from: destineedhuber8301

E =+823.12N/C.

Explanation:

The electric field at point is the sum of electric field E_1 due to q_1 and E_2 due to q_2 at :

E = E_1+E_2 .

The distance from to q_1 is R_1 = 0.150m+0.250m = 0.400m ; therefore, the electric due to it is

$E_1 = k\dfrac{q_1}{R_1^2}$

$E_1 = 9*10^9*\dfrac{+6.39*10^{-9}C}{(0.400m)^2}$

E_1 = +359.44N/C.

And the distance from to q_2 is R_2 = 0.250m ; therefore,

$E_2 = k\dfrac{q_2}{R_2^2}$

$E_2 = 9*10^9*\dfrac{+3.22*10^{-9}C}{(0.250m)^2}$

E_2 = +463.68N/C

Hence, the total electric field at point is

E = E_1+E_2

E = +359.44N/C+463.68N/C

$\boxed{E =+823.12N/C.}$

where the plus sign indicates that the the electric field points to the right.

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In the diagram, q1 = -6.39*10^-9 C and q2 = +3.22*10^-9 C. What is the electric field at point P? In...

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