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4 cards from this section. Quick, good the night before a test.
What does Coulomb's Law describe?
Think about how charges interact.
State the formula of Coulomb's Law.
Remember the relationship between force and distance.
What does Coulomb's Law state about the relation between distance and force?
Recall how changing distance affects force.
Is the electrostatic force between two like charges attractive or repulsive?
Think of magnets' behavior.
Two charges, +5C and +5C, are 2 meters apart. Calculate the force between them. How would the force change if one charge became -5C?
Apply Coulomb’s Law and consider the sign change for charges.
In a system with three charges positioned as follows: Charge A is +3C at (0,0), Charge B is +2C at (3,0), and Charge C is -1C at (3,4). Calculate the net force on Charge A.
Break it down into two parts: Forces from B and C acting on A.
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