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EF: Electric Field
Introductory Physics
Algebra-Based
EF: Electric Field
Introductory Physics
Algebra-Based
Micro-model of Charge, Q-transfer, Conductors vs. Insulators
Micro-model of Charge, Q-transfer, Conductors vs. Insulators
Electric Forces and Coulomb's Law
Electric Forces and Coulomb's Law
Combined Coulomb’s (electric forces) and Newton’s second laws practice problem
Combined Coulomb’s (electric forces) and Newton’s second laws practice problem
Two ping pong balls filled with air are tied to a very light 0.5 meters-long string. The loose ends of the strings are taped to the same position on a horizontal ceiling. When both are equally rubbed with the same material, they develop a static charge and repel each other, making an angle of 30° with respect to the vertical. (m = 3 grams)
(A) With this experiment alone, can you tell what type of charge is on the balloon? Explain.
(B) Is this a stable or unstable equilibrium?
(C) Estimate the number of excess charges on each balloon. Clearly state any assumptions made in your estimation.
Field Model, Charges in an Electric Field
Field Model, Charges in an Electric Field
Electric Field from Point Charges
Electric Field from Point Charges
Electric Fields Patterns
Electric Fields Patterns
Notes and More Practice Problems
Notes and More Practice Problems