PHYS 1260 FINAL EXAM CONCEPTUAL REVIEW
QUESTIONS
Two charges that are separated by one meter exert 1-N forces on each other. If the
magnitude ofeach charge is doubled, the force on each charge is A) 1 N. B) 2 N. C) 4 N.
D) 8 N. E) [none ofthese] - Answers - 4 N
Two charged particles attract each other with a force F. If the charges of both particles
aredoubled, and the distance between them is also doubled, then the force of attraction
will be A) F.B) 2F. C) F/2. D) F/4. E) [none of these] - Answers - F
An electron is pushed into an electric field where it acquires a 1 V electrical potential. If
twoelectrons are pushed the same distance into the same electric field, the electrical
potential of thetwo electrons is A) 0.25 V. B) 0.5 V. C) 1 V. D) 2 V. E) 4 V. - Answers - 1
V
Assume that 10 J of work is required to push a charge (initially at rest) into an electric
field. Ifthe charge is then released, it flies back to its starting position with a kinetic
energy of A) zero.B) 5 J. C) 10 J. D) more than 10 J. E) [need more information] -
Answers - 10 J
A coulomb of charge flowing in a bulb filament powered by a 6-volt battery is provided
withA) 6 ohms. B) 6 amperes. C) 6 joules. D) 6 watts. E) 6 newtons. - Answers - 6
Joules
Two light bulbs are connected to a battery, one at a time. The bulb that draws more
current hasthe A) lower resistance, and is brightest. B) lower resistance, but is dimmer.
C) higher resistance,and is brightest. D) higher resistance, but is dimmer. E) [none of
these] - Answers - Lower resistence, and is brightest
When two lamps are connected in series to a battery, the electrical resistance that the
batterysenses is A) more than the resistance of either lamp. B) less than the resistance
of either lamp.C) [none of these] - Answers - more than the resistance of either lamp
Compared to a single lamp connected to a battery, two identical lamps connected in
series to thesame battery will carry A) more current. B) less current. C) the same
current. - Answers - Less current
An electron beam directed through a magnetic field A) may be deflected. B)
experiences a force.C) [both of these] D) [neither of these] - Answers - Both of these
QUESTIONS
Two charges that are separated by one meter exert 1-N forces on each other. If the
magnitude ofeach charge is doubled, the force on each charge is A) 1 N. B) 2 N. C) 4 N.
D) 8 N. E) [none ofthese] - Answers - 4 N
Two charged particles attract each other with a force F. If the charges of both particles
aredoubled, and the distance between them is also doubled, then the force of attraction
will be A) F.B) 2F. C) F/2. D) F/4. E) [none of these] - Answers - F
An electron is pushed into an electric field where it acquires a 1 V electrical potential. If
twoelectrons are pushed the same distance into the same electric field, the electrical
potential of thetwo electrons is A) 0.25 V. B) 0.5 V. C) 1 V. D) 2 V. E) 4 V. - Answers - 1
V
Assume that 10 J of work is required to push a charge (initially at rest) into an electric
field. Ifthe charge is then released, it flies back to its starting position with a kinetic
energy of A) zero.B) 5 J. C) 10 J. D) more than 10 J. E) [need more information] -
Answers - 10 J
A coulomb of charge flowing in a bulb filament powered by a 6-volt battery is provided
withA) 6 ohms. B) 6 amperes. C) 6 joules. D) 6 watts. E) 6 newtons. - Answers - 6
Joules
Two light bulbs are connected to a battery, one at a time. The bulb that draws more
current hasthe A) lower resistance, and is brightest. B) lower resistance, but is dimmer.
C) higher resistance,and is brightest. D) higher resistance, but is dimmer. E) [none of
these] - Answers - Lower resistence, and is brightest
When two lamps are connected in series to a battery, the electrical resistance that the
batterysenses is A) more than the resistance of either lamp. B) less than the resistance
of either lamp.C) [none of these] - Answers - more than the resistance of either lamp
Compared to a single lamp connected to a battery, two identical lamps connected in
series to thesame battery will carry A) more current. B) less current. C) the same
current. - Answers - Less current
An electron beam directed through a magnetic field A) may be deflected. B)
experiences a force.C) [both of these] D) [neither of these] - Answers - Both of these
