PHYS 1260 Exam 1 DeWitt Questions With Verified
Answers | latest updated 2024
Just as gravity is the study of a wide range of gravitational interactions, electricity is the
study of a wide range of Correct Answer: Electrical Interactions
Electrostatics is a branch of electricity that focuses on Correct Answer: Electrical charge
& electrical force
In an electrically neutral atom the number of protons in the nucleus is equal to the
number of Correct Answer: electrons that surround the nucleus
The pair of protons in the nucleus of a helium atom Correct Answer: attract a pair of
orbiting electrons
Two protons attract each other gravitationally and repel each other electrically. The
stronger of these two forces is Correct Answer: electrical
The unit of electric charge, the coulomb, is the charge on a Correct Answer: specific
large number of electrons
When the distance between two charges is halved, the electrical force between them
Correct Answer: quadruples
The electrical force between electric charges depends only on their Correct Answer:
magnitude & separation distance
The electrical force on a 2-C charge is 60 N. The electric field where the charge is
located is Correct Answer: 30 N/C
,The electric field between oppositely-charged parallel plates is Correct Answer: uniform
Electric potential, measured in volts, is the ratio of electrical potential energy to the
amount of electric Correct Answer: charge
If 10 J of work is used in pushing a 1-C charge into an electric field, its electric potential
relative to its starting position is Correct Answer: 10 V
To think of electric potential difference we are thinking about Correct Answer: voltage
An ampere is a unit of electric Correct Answer: current
Electrons flow in a wire when there is Correct Answer: a potential difference across its
ends
A coulomb of charge flowing in a bulb filament powered by a 6-volt battery is provided
with Correct Answer: 6 joules
The unit of electrical resistance is the Correct Answer: Ohm
The current produced by voltage in a circuit is impeded by Correct Answer: electric
resistance
Ohm's law tells us that the amount of current produced in a circuit is Correct Answer:
directly proportional to voltage & inversely proportional to resistance
Current in a conductor can be increased by Correct Answer: increasing the voltage
across it & reducing its resistance
Two charges that are separated by one meter exert 1-N forces on each other. If the
magnitude of each charge is doubled, the force on each charge is Correct Answer: 4 N
, Two charged particles attract each other with a force . If the charges of both particles
are doubled, and the distance between them is also doubled, then the force of attraction
will be Correct Answer: F
An electron is pushed into an electric field where it acquires a 1 V electrical potential. If
two electrons are pushed the same distance into the same electric field, the electrical
potential of the
two electrons is Correct Answer: 1 V
Assume that 10 J of work is required to push a charge (initially at rest) into an electric
field. If the charge is then released, it flies back to its starting position with a kinetic
energy of Correct Answer: 10 J
Two light bulbs are connected to a battery, one at a time. The bulb that draws more
current has the Correct Answer: lower resistance, and is brightest
When two lamps are connected in series to a battery, the electrical resistance that the
battery "senses" is Correct Answer: more than the resistance of either lamp
When two lamps are connected in parallel to a battery, the electrical resistance that the
battery "senses" is Correct Answer: less than the resistance of either lamp
On some early automobiles both headlights failed when one bulb burned out. The
headlights were likely connected in Correct Answer: series
Magnet A has twice the magnetic field strength of Magnet B and at a certain distance
pulls on magnet B with a force of 100 N. The amount of force that magnet A exerts on
magnet B is Correct Answer: exactly 100 N
Answers | latest updated 2024
Just as gravity is the study of a wide range of gravitational interactions, electricity is the
study of a wide range of Correct Answer: Electrical Interactions
Electrostatics is a branch of electricity that focuses on Correct Answer: Electrical charge
& electrical force
In an electrically neutral atom the number of protons in the nucleus is equal to the
number of Correct Answer: electrons that surround the nucleus
The pair of protons in the nucleus of a helium atom Correct Answer: attract a pair of
orbiting electrons
Two protons attract each other gravitationally and repel each other electrically. The
stronger of these two forces is Correct Answer: electrical
The unit of electric charge, the coulomb, is the charge on a Correct Answer: specific
large number of electrons
When the distance between two charges is halved, the electrical force between them
Correct Answer: quadruples
The electrical force between electric charges depends only on their Correct Answer:
magnitude & separation distance
The electrical force on a 2-C charge is 60 N. The electric field where the charge is
located is Correct Answer: 30 N/C
,The electric field between oppositely-charged parallel plates is Correct Answer: uniform
Electric potential, measured in volts, is the ratio of electrical potential energy to the
amount of electric Correct Answer: charge
If 10 J of work is used in pushing a 1-C charge into an electric field, its electric potential
relative to its starting position is Correct Answer: 10 V
To think of electric potential difference we are thinking about Correct Answer: voltage
An ampere is a unit of electric Correct Answer: current
Electrons flow in a wire when there is Correct Answer: a potential difference across its
ends
A coulomb of charge flowing in a bulb filament powered by a 6-volt battery is provided
with Correct Answer: 6 joules
The unit of electrical resistance is the Correct Answer: Ohm
The current produced by voltage in a circuit is impeded by Correct Answer: electric
resistance
Ohm's law tells us that the amount of current produced in a circuit is Correct Answer:
directly proportional to voltage & inversely proportional to resistance
Current in a conductor can be increased by Correct Answer: increasing the voltage
across it & reducing its resistance
Two charges that are separated by one meter exert 1-N forces on each other. If the
magnitude of each charge is doubled, the force on each charge is Correct Answer: 4 N
, Two charged particles attract each other with a force . If the charges of both particles
are doubled, and the distance between them is also doubled, then the force of attraction
will be Correct Answer: F
An electron is pushed into an electric field where it acquires a 1 V electrical potential. If
two electrons are pushed the same distance into the same electric field, the electrical
potential of the
two electrons is Correct Answer: 1 V
Assume that 10 J of work is required to push a charge (initially at rest) into an electric
field. If the charge is then released, it flies back to its starting position with a kinetic
energy of Correct Answer: 10 J
Two light bulbs are connected to a battery, one at a time. The bulb that draws more
current has the Correct Answer: lower resistance, and is brightest
When two lamps are connected in series to a battery, the electrical resistance that the
battery "senses" is Correct Answer: more than the resistance of either lamp
When two lamps are connected in parallel to a battery, the electrical resistance that the
battery "senses" is Correct Answer: less than the resistance of either lamp
On some early automobiles both headlights failed when one bulb burned out. The
headlights were likely connected in Correct Answer: series
Magnet A has twice the magnetic field strength of Magnet B and at a certain distance
pulls on magnet B with a force of 100 N. The amount of force that magnet A exerts on
magnet B is Correct Answer: exactly 100 N
