all cricket 8:03 PM e flipitphysics.com FlipltPhysics Physics 4B: EM and Heat, F

Question

all cricket 8:03 PM e flipitphysics.com FlipltPhysics Physics 4B: EM and Heat, F2017 Homework: HW 10 of CH24 Two parallel plates, each having area A-3416 cm2 are connected to the terminals of a battery of voltage Vb 6V as shown. The plates are separated by a distance d . 0.5 What is Q the charge on the top plate? You currently have 1 submissions for this question. Only 10 submission are allowed You can make 9 more submissions for this question What is U, the energy stored in the this capacitor? You currently have 1 submissions for this question. Only 10 submission are allowed You can make 9 more submissions for this question. The battery is now disconnected from the plates and the separation of the plates is doubled -1 cm). What is the energy stored in this new capacitor? You currently have 2 submissions for this question. Only 10 submission are allowed. You can make 8 more submissions for this question what is E, the magnitude of the electric field in the region between the plates You currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question. °Compare V, the magnitude of the new potential difference across the plates, to Vb, the voltage of the battery. You currently have O submissions for this question. Only 10 submission are allowed. You can make 10 more submíssions for this question

Explanation / Answer

capacitance C1 = eo*A/d1 = eo*A/(2*do) = Co/2

energy stored U = (1/2)*Q^2/C1

U = (1/2)*Q^2*2/Co

U = 2*(1/2)*Q^2/Co

U = 2*Uo

U = 2*10.8834*10^-9

U = 21.7668*10^-9 J <<<<----------ANSWER

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4)

E = Q/(A*e0) = (3.62779*10^-9)/(3416*10^-4*8.85*10^-12)

E = 1200 N/C

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5)

V > Vb

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