Question: A parallel-plate capacitor is connected to a battery and stores (4.4 mathrm{nC}) of charge. Then, while the battery remains connected, a sheet of Teflon is

A parallel-plate capacitor is connected to a battery and stores $4.4 \mathrm{nC}$ of charge. Then, while the battery remains connected, a sheet of Teflon is inserted between the plates.

a. Does the capacitor's charge increase or decrease?

b. By how much does the charge change?

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