Two parallel plates, each having area A = 2795 cm^2 are connected to the termina

Question

Two parallel plates, each having area A = 2795 cm^2 are connected to the terminals of a battery of voltage V_b = 6 V as shown. The plates are separated by a distance d = 0.32 cm. What is Q the charge on the top plate? You currently have 5 submissions for this question. Only 10 submission are allowed. You can make 5 more submissions for this question. What is U, the energy stored in the this capacitor? You currently have 2 submission for this question. Only 10 submission are allowed. You can make 8 more submissions for this question. The battery is now disconnected from the plates and the separation of the plates is doubled (= 0.64 cm), what is the energy stored in this new capacitor? You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. What is E, the magnitude of the electric field in the region between the plates? N/C You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. Compare V, the magnitude of the new potential difference across the plates, to V_b, the voltage of the battery. V V_b You currently have 0 submission for this question. Only 10 submission are allowed.

Explanation / Answer

C =eo*A/d

A = 2795 cm^2 = 2795 x 10^-4 m^2

d = 0.32 cm = 0.32 x 10^-2 m

C = 7.723 x 10^-10 F

Q =CV = 4.638 x 10^-9 C

part b )

U = QV/2 = 1.39 x 10^-8 J

part c )

battery is disconnected charge remains same

voltage is directly proptional to distance

if distance doubled voltage will be doubled

U' = q*2V = 2U

U' = 2.78277 x 10^-8 J

part d )

E = sigma/eo

sigma = q/A

E = 1875 N/C

part e )

V > Vb

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.