Two conducting spheres have charges of Qa = 3C and Qb = -1 C. They are touched together and then returned to their original positions. Afterward, you measure the electrostatic force between them. The electrostatic force a. has switched directions. b. is 0 N. c. is unchanged. d. has changed magnitude, but is in the same direction.

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Q: 2.) You have a rectangular coil of wire consisting of a single loop. The long sides are each 20 cm…

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Q: V, 12V R₁ - 4a R₂ = 2a R₁ = 2n (Total: 12V, 24A, 50) Total R₁ R₂ R₂ Voltage Current Resistance

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.