if charge q 2 is between q 1 and where the electric field is to be calculated (\

Question

if charge q2 is between q1 and where the electric field is to be calculated ("blocking theline of sight" from q1 to the field point),the contribution of q1 to the field is not effected bythe prescence of q2. Each charge contributes to thefield accordingly. My question is elarberate on this statement if charge q2 is between q1 and where the electric field is to be calculated ("blocking theline of sight" from q1 to the field point),the contribution of q1 to the field is not effected bythe prescence of q2. Each charge contributes to thefield accordingly. My question is elarberate on this statement

Explanation / Answer

Let us consider charge q1 and q2 areseparated by a distance r and the point(P) where the electric fieldis to be calculated be at a distance x from the chargeq2. The electric field due to charge q1 at point Pis E1 = k *(q1/r12) where k = (1/4o) = 9 * 109Nm2/C2 and r1 = r + x The electric field due to charge q1 at point Pis E2 = k *(q2/r22) where r2 = x Therefore,from equations (1) and (2) we can say that eachcharge contributes to the field separately.The electric field dueto the charge depends directly on the magnitude of the charge andinversely on the square of the distance between them. The electric field due to charge q1 at point Pis E2 = k *(q2/r22) where r2 = x Therefore,from equations (1) and (2) we can say that eachcharge contributes to the field separately.The electric field dueto the charge depends directly on the magnitude of the charge andinversely on the square of the distance between them.

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