Which statements are true for two oppositely charged, isolated, very large paral

Question

Which statements are true for two oppositely charged, isolated, very large parallel plates: (C=capacitance, U=stored energy, +Q and -Q = charge on the plates). Note: Isolated plates can not lose their charge. "Very large plates" means assume you have an ideal capacitor for this problem. (For each statement select T True, F False).

A) When the distance between the plates is doubled, U is halved.

B) When the distance between the plates is doubled, C is halved.

C) Doubling the distance between the plates halves the magnitude of the electric field.

D) When the distance between the plates is doubled, Q stays the same.

Explanation / Answer

For an ideal capacitor, We can answer the fabove questions as follows

A) TRUE

B) TRUE

C) TRUE

D) FALSE

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