A parallel plate capacitor is charged to voltage V and then disconnected from the battery. Leopold says that the voltage will decrease if the plates are pulled apart. Gerhardt says that the voltage will remain the same. Which one, if either, is correct, and why?
a. Gerhardt, because the maximum voltage is determined by the battery.
b. Gerhardt, because the charge per unit area on the plates does not change.
c. Leopold, because charge is transferred from one plate to the other when the plates are separated.
d. Leopold, because the force each plate exerts on the other decreases when the plates are pulled apart.
e. Neither, because the voltage increases when the plates are pulled apart.
e
You might also like to view...
COBE found the cosmic microwave background to be absolutely uniform everywhere
Indicate whether the statement is true or false
An object is in free fall as soon as it is released, whether it is dropped from rest, thrown downward, or thrown upward
Indicate whether the statement is true or false
The primary coil of an ideal transformer has 100 turns and its secondary coil has 400 turns. If the ac current in the secondary coil is 2 A, what is the current in its primary coil?
A) 2 A B) 8 A C) 1/2 A D) 1/4 A E) 4 A
The greenhouse effect keeps the surface of ________ warmer than it otherwise would be.
A. Mercury B. Earth C. Venus D. All of these choices are correct. E. None of these choices is correct.