Chapter 16 Questions Flashcards
A proton is released from rest in a uniform electric field. Determine whether the following quantities increase, decrease, or remain unchanged as the proton moves: the electric potential at the proton’s location
Decreases
A proton is released from rest in a uniform electric field. Determine whether the following quantities increase, decrease, or remain unchanged as the proton moves: The proton’s associated electric potential energy
decreases
A proton is released from rest in a uniform electric field. Determine whether the following quantities increase, decrease, or remain unchanged as the proton moves: its kinetic energy
increases
A proton is released from rest in a uniform electric field. Determine whether the following quantities increase, decrease, or remain unchanged as the proton moves: its total energy
remains unchanged
A electron is released from rest in a uniform electric field. Determine whether the following quantities increase, decrease, or remain unchanged as the electron moves: The electric potential at the electron’s location
increases
A electron is released from rest in a uniform electric field. Determine whether the following quantities increase, decrease, or remain unchanged as the electron moves: the electron’s associated electric potential energy
decreases
A electron is released from rest in a uniform electric field. Determine whether the following quantities increase, decrease, or remain unchanged as the electron moves: its kinetic energy
increases
A electron is released from rest in a uniform electric field. Determine whether the following quantities increase, decrease, or remain unchanged as the electron moves: its total energy
remains unchanged
After being released from rest in a uniform electric field, a proton will move ________ as the electric field to regions of _____ electric potential.
in the same direction, lower
After being released from rest in a uniform electric field, an electron will move _________ of the electric field to regions of ______ electric potential.
in the opposite direction, higher
If an electron is released from rest in a uniform electric field, the electric potential energy of the charge-field system does what?
decreases
If a negatively charged particle is placed at rest in an electric potential field that increases in the positive X direction, what will the particle do?
accelerate in the positive X direction
The figure below is a graph of an electric potential as a function of position. If a positively charged particle is placed at point A, what will its subsequent motion be? (the graph shows that point A is on an upward slope that starts at the y axis and increases until point B, which is in the positive X direction)
The positively charged particle will move to the left, down the ‘slope’ of the graph
The figure below is a graph of an electric potential as a function of position. If a negatively charged particle is placed at point A, what will its subsequent motion be? (the graph shows that point A is on an upward slope that starts at the y axis and increases until point B, which is in the positive X direction)
The negatively charged particle will oscillate around point B (the highest point)
Consider a collection of charges in a given region and suppose all other charges are distant and have a negligible effect. Further, the electric potential is taken to be zero at infinity. If the electric potential at a given point in the region is zero, which of the following statements must be true?
Some charges in the region are positive, and some are negative
A spherical balloon contains a positively charged particle at its center. As the balloon is inflated to a larger volume while the charged particle remains at its center, which of the following is true regarding the flux?
the electric flux through the balloon remains the same
an electron initially at rest accelerates through a potential difference of 1V, gaining kinetic energy KEe, whereas a proton, also initially at rest, accelerates through a potential difference of -1V, gaining kinetic energy KEp. What can we deduce about the relationship between KEe and KEp?
KEe=KEp
A capacitor is designed such that one plate is large and the other is small. If the plates are connected to a battery, what will happen?
The plates will have equal but opposite charge.
A parallel plate capacitor is disconnected from a battery and the plates are pulled a small distance farther apart. Do the following quantities increase, decrease, or stay the same: C (capacitance)
decrease
A parallel plate capacitor is disconnected from a battery and the plates are pulled a small distance farther apart. Do the following quantities increase, decrease, or stay the same: Q (charge)
stay the same
A parallel plate capacitor is disconnected from a battery and the plates are pulled a small distance farther apart. Do the following quantities increase, decrease, or stay the same: E (between the plates)
stay the same
A parallel plate capacitor is disconnected from a battery and the plates are pulled a small distance farther apart. Do the following quantities increase, decrease, or stay the same: deltaV (voltage)
increase
A parallel plate capacitor is disconnected from a battery and the plates are pulled a small distance farther apart. Do the following quantities increase, decrease, or stay the same: energy stored in the capacitor
increase
A fully charged parallel plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same: C (capacitance)
increases
A fully charged parallel plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same: Q (charge)
increases
A fully charged parallel plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same: E (between the plates)
stay the same
A fully charged parallel plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same: deltaV
stays the same
A fully charged parallel plate capacitor remains connected to a battery while a dielectric is slid between the plates. Do the following quantities increase, decrease, or stay the same: energy stored in the capacitor
increases
Consider a parallel plate capacitor with a dielectric material between the plates. If the temperature of the dielectric increases, what will happen to the capacitance?
it will decrease
A parallel plate capacitor is connected to a battery, and the plates are moved a small distance closer together. Do the following quantities increase, decrease, or stay the same: The capacitance C
Increases
A parallel plate capacitor is connected to a battery, and the plates are moved a small distance closer together. Do the following quantities increase, decrease, or stay the same: the charge Q on the plates
increase
When a capacitor is disconnected from a battery, what stays constant?
The charge, Q
When a capacitor is connected to a battery, what stays constant?
The voltage V
