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Question 1
Three point charges are arranged in a straight line. Charge A (+2.0 ฮผC) is fixed at position x = 0 cm. Charge B (โ3.0 ฮผC) is fixed at x = 4.0 cm. Charge C (+1.5 ฮผC) is placed at x = 1.0 cm and experiences a net electrostatic force of 28 N to the right.
A student calculates the net force on charge C and finds 28 N to the right. Another student claims the force should be 28 N to the left.
Justify which student is correct by determining the direction of each force component acting on charge C.
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Question 2
Calculate the magnitude of the electrostatic force acting between the two charges if the separation distance is tripled and the magnitude of charge Q is reduced to one-third its original value.
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Question 3
a) Determine whether the experimental result supports Coulomb's law.
b) Justify your conclusion by comparing the experimental and theoretical force ratios.
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