Two Parallel Plates That Are Initially Uncharged Are Separated By 1.7

question 11

Multiple Choice

Two parallel plates that are initially uncharged are separated by $1.7 \mathrm {~mm}$ , have only air between them, and each have surface areas of $16 \mathrm {~cm} ^ { 2 }$ . How much charge must be transferred from one plate to the other if $1.9 \mathrm {~J}$ of energy are to be stored in the plates? $\left( \varepsilon _ { 0 } = 8.85 \times 10 ^ { - 12 } \mathrm { C } 2 / \mathrm { N } \cdot \mathrm { m } ^ { 2 } \right)$

• A) \(0.60 \mathrm { mC }\)
• B) \(4.0 \mu \mathrm { C }\)
• C) \(8.0 \mu \mathrm { C }\)
• D) \(5.6 \mu \mathrm { C }\)

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