Points A and B are 0.10 apart. A point charge of +3.0 × 10-9C is placed at A and a point charge of
−1.0 × 10-9C is placed at B.
i) X is a point on the straight line through A and B, between A and B, where the electric potential is zero.
Calculate the distance AX.
ii) Show on a diagram the appropriate position of a point, Y, on the straight line through A and B where the field strength is zero.
Answer
1) using direct short formula to calculate distance AX from point charge 3nC
from point charge 3nC or called AX.
2) diagram can be shown as below
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