2. A negatively charged particle is in the presence of an electric field. If it\
ID: 2124384 • Letter: 2
Question
2. A negatively charged particle is in the presence of an electric field. If it's released (under no other forces) which
way would it move?
a. In the direction of the electric field
b. In the direction opposite of the electric field
c. Perpendicular to the electric field
d. It wouldn%u2019t move at all
e. Not enough information is given to answer this question
3. A parallel plate capacitor is connected to a voltage source. Which of the following would NOT increase the net
capacitance in the circuit? (Assume all other factors remain constant.)
a. Increase plate size
b. Decrease separation distance
c. Increase the dielectric constant
d. Increase the voltage across the capacitor
e. Connect a second, identical capacitor in parallel
4. In an RLC circuit, suppose you wanted to RAISE the resonance frequency. Which
of the following would do it?
a. Use a resistor with larger R
b. Use an inductor with larger L
c. Use a capacitor with larger C
d. B or C would raise the resonance frequency
e. None of these would raise the resonance frequency
7. A 250 W visible light does not eject electrons from a metal plate. Which type of source might start getting
electrons ejected?
a. A more intense (500 W) visible light
b. A microwave source
c. An ultraviolet source
d. An infrared source
Explanation / Answer
2. A negatively charged particle is in the presence of an electric field. If it's released (under no other forces) which
way would it move?
a. In the direction of the electric field
b. In the direction opposite of the electric field
c. Perpendicular to the electric field
d. It wouldn%u2019t move at all
e. Not enough information is given to answer this question
3. A parallel plate capacitor is connected to a voltage source. Which of the following would NOT increase the net
capacitance in the circuit? (Assume all other factors remain constant.)
a. Increase plate size
b. Decrease separation distance
c. Increase the dielectric constant
d. Increase the voltage across the capacitor
e. Connect a second, identical capacitor in parallel
4. In an RLC circuit, suppose you wanted to RAISE the resonance frequency. Which
of the following would do it?
a. Use a resistor with larger R
b. Use an inductor with larger L
c. Use a capacitor with larger C
d. B or C would raise the resonance frequency
e. None of these would raise the resonance frequency
7. A 250 W visible light does not eject electrons from a metal plate. Which type of source might start getting
electrons ejected?
a. A more intense (500 W) visible light
b. A microwave source
c. An ultraviolet source
d. An infrared source
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