all cricket 7:58 PM flipitphysics.com FlipltPhysicsPhysics 4B: EM and Heat, F201

Question

all cricket 7:58 PM flipitphysics.com FlipltPhysicsPhysics 4B: EM and Heat, F2017 Homework: HW 10 of CH24 Tiplers 24.P.021 Find the energy stored in a 21 pF capacitor when it s charged to 5 HC. You currently have 3 submissions for this question. Only 10 submission are allowed. You can make 7 more submissions for this question. How much additional energy is required to increase the charge from 5 to 10 uC? You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question.

Explanation / Answer

a. The energy stored in the capacitor is, U = Q2 /2C = (5x10-6)2 / 2 x 21x10-12 = 0.595 J

b. The energy is calculated as follows:

U = U(10) - U (5) =  Q2 /2C - 0.595 J = [10x10-6 x 10x10-6 / 2 x 21x10-12 ] - 0.595 = 1.786 J

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