An Air-Filled Parallel-Plate Capacitor Is Connected to a Battery and Allowed

question 19

Multiple Choice

An air-filled parallel-plate capacitor is connected to a battery and allowed to charge up.Now a slab of dielectric material is placed between the plates of the capacitor while the capacitor is still connected to the battery.After this is done,we find that

• A) the energy stored in the capacitor had decreased.
• B) the voltage across the capacitor had increased.
• C) the charge on the capacitor had increased.
• D) the charge on the capacitor had not changed.
• E) None of these choices are true.

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Sample Mean

The average value of a sample, used to estimate the population mean.

Sample Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of sample values relative to the sample mean.