Physics, 24.04.2020 22:53, connienash95
Imagine two parallel infinite sheets, carrying uniform surface charge +σ+σ (on the sheet z=d) and −σ−σ (at z=0). They are moving in the y direction at constant speed v. (a) What is the electromagnetic momentum in the region of area A? (b) Now suppose the top sheet moves slowly down (speed u) until it reaches the bottom sheet, so the fields dissapear. By calculating the (magnetic) force on the charge (q=σAq=σA), show that the impulse delivered to the sheet is equal to the momentum originally stored in the fields.
Answers: 3
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Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.
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Imagine two parallel infinite sheets, carrying uniform surface charge +σ+σ (on the sheet z=d) and −σ...
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