A 100-NF Capacitor Initially Charged to 30

question 65

Multiple Choice

A 1.00-nF capacitor initially charged to 30.0 V and a 2.00-nF capacitor charged to 40.0 V are connected to each other with the negative plate of each connected to the negative plate of the other.What is the electric potential across the 1.00-nF capacitor?

• A)36.7 V
• B)40.0 V
• C)30.0 V
• D)38.9 V
• E)34.1 V

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Definitions:

Specific Gravity

The ratio of the density of a substance to the density of a reference substance, typically water, at a specified temperature.

Volcanic Glass

A natural glass produced by the cooling and solidification of molten lava at a rate too rapid to permit crystallization.

Liquid Water

The liquid phase of H2O, existing at temperatures between 0°C and 100°C under standard atmospheric pressure, and vital for all known forms of life.

Minerals

Naturally occurring substances, usually inorganic, with a defined chemical composition and crystalline structure.