(1 μC = 10-6 C, 1 mC = 10-3 C)
Consider two point charges positioned on the x-axis. The first point charge carries +2.00
μC of charge and is placed at x = −1.00 m. The second charge carries -1.00 μC of charge
and is placed at x = 3.00 m.
1. How many protons make up the first charge? the second charge?
2. What is the force exerted by the positive charge on the negative charge?
3. In which direction is the force directed toward?
4. What would be the new value of the force if:
a. the first charge is doubled but the second charge is unchanged?
b. the first charge is unchanged but the second charge is doubled?
c. both charges are doubled?
d. both charges are halved?
Suppose that we replace the positive charge at x = −1.00 m with a -2.00 μC charge.
5. What is the magnitude of the force exerted by the charges on each other?
6. Is the new force attractive or repulsive?
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