A Parallel-Plate Capacitor Has a Capacitance of 10 MF and Is

question 39

Multiple Choice

A parallel-plate capacitor has a capacitance of 10 mF and is charged with a 20 V power supply. The power supply is then removed and a dielectric of dielectric constant 4 is used to fill the space between the plates. The voltage now across the capacitor is

• A)zero.
• B)20 V.
• C)5 V.
• D)10 V.
• E)80 V.

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The Cold War, spanning from the conclusion of World War II until the collapse of the Soviet Union in 1991, involved a prolonged state of political and military tension between the United States along with its allies and the Soviet Union, marked by aggressive rhetoric, espionage, and acts other than direct military conflict.

Oscar Handlin

A prominent American historian and author known for his studies on immigration and the history of ethnicity in American life.

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