Parallel-Plate Capacitor: Two ideal parallel-plate capacitors are identical in every respect except that one has twice the plate area of the other. If the smaller capacitor has capacitance C, the larger one has capacitance

A. C/2.
B. C.
C. 2C.
D. 4C.


Answer: C

Physics & Space Science

You might also like to view...

Which of the following is an example of chemical energy?

A) the energy stored in firewood that has been gathered for burning B) the energy stored in your body, that enables you to do work C) Both of the above. D) the energy in a stretched rubber band E) the energy in hot steam

Physics & Space Science

An uncharged conductor has a hollow cavity inside of it. Within this cavity there is a charge of +10 µC that does not touch the conductor

There are no other charges in the vicinity. Which statement about this conductor is true? (There may be more than one correct choice.) A) The inner surface of the conductor carries a charge of -10 µC and its outer surface carries no excess charge. B) The inner and outer surfaces of the conductor each contain charges of -5 µC. C) The net electric field within the material of the conductor points away from the +10 µC charge. D) The outer surface of the conductor contains +10 µC of charge and the inner surface contains -10 µC. E) Both surfaces of the conductor carry no excess charge because the conductor is uncharged.

Physics & Space Science

What keeps the Sun's outer layers from continuing to fall inward in a gravitational collapse?

A) neutrinos produced by nuclear fusion drag gas outward B) the strong force between protons C) electromagnetic repulsion between protons D) outward pressure due to super-heated gas

Physics & Space Science

The first confirmed detections of extrasolar planets occurred in

A) the 1990s. B) the mid-17th century. C) the 1920s. D) 2009.

Physics & Space Science