PHY 102 Final Exam ISU Part 3 Questions | Latest
study | Actual Questions and Answers | 2026 Updates
negatively charged - ANSWER-If you comb your hair and the comb becomes positively charged,
then your hair becomes
attract each other - ANSWER-Electric charges of the opposite sign
True - ANSWER-True or False: Electric charge occurs only in separate parcels of ±1.6 × 10-19 C
they must be made of different material - ANSWER-When charging two objects by rubbing them
together
positive - ANSWER-An uncharged conductor is supported by an insulating stand. I pass a
positively charged rod near the left end of the conductor, but do not touch it. The right end of
the conductor will be
(d) electric charges move freely - ANSWER-Which of the following best characterizes electrical
conductors?
(a) low mass density
(b) poor heat conductors
(c) total electric charge is zero
(d) electric charges move freely
electric charges do not move freely - ANSWER-Which of the following best characterizes
electrical insulators?
volt - ANSWER-One Joule per coulomb is called
repulsion - ANSWER-In case the charges are similar the force is of
False - ANSWER-Electric Potential is a vector quantity
True - ANSWER-Electric field is a vector quantity
False - ANSWER-A negative charge sets up an electric field pointing away from the charge
source charge - ANSWER-Electric Field depends on the
F = kq1q2/r^2 - ANSWER-Formula that describes statement of coulombs law is
, may increase or decrease - ANSWER-When the separation between two charges is increased,
the electric potential energy of the charges
Franklin - ANSWER-Which scientist was one of the first to theorize that there were two types of
charges?
decreases - ANSWER-When a positive test charge moves naturally from one location to another,
its potential energy
electric potential energy per charge - ANSWER-The quantity electric potential is defined as the
amount of
negative, smaller, loosely bound - ANSWER-Charge carriers in a metal are electrons rather than
protons because electrons are
potential energy of the electron - ANSWER-Moving an electron within an electric field would
change the
7.2 x106 N/C - ANSWER-What is the electric field strength at a distance of 5 cm from a charge of
2 μC?
4F - ANSWER-Two charges separated by a distance d exert mutual attractive forces of F each
other. If these charges are separated by a distance of d/2, what are the new mutual forces?
one third its original value - ANSWER-At three times the distance from a point charge, the
electric potential is
material - ANSWER-Resistivity of a wire depends on
2R - ANSWER-Resistance of a wire is R ohms. The wire is stretched to double its length, then its
resistance in ohms is
current - ANSWER-The amount of charge flowing through a cross-sectional area of a wire per
unit of time is called
2Ω - ANSWER-Two resistors R1 = 3 Ω and R2 = 6 Ω are connected in parallel. What is the net
resistance in the circuit?
2A - ANSWER-Three resistors: R1 = 3 Ω,R2 = 6 Ω, and R3 = 9 Ω are connected in series to each
other and to a 36 V battery. What is the ammeter reading after the switch is closed?
3 watt - ANSWER-An electric lamp is labeled 6V, 0.5 A. When it is operating correctly the power
of the lamp is
electric energy - ANSWER-Which of the following quantities do householders pay for when
paying the electricity bill?
study | Actual Questions and Answers | 2026 Updates
negatively charged - ANSWER-If you comb your hair and the comb becomes positively charged,
then your hair becomes
attract each other - ANSWER-Electric charges of the opposite sign
True - ANSWER-True or False: Electric charge occurs only in separate parcels of ±1.6 × 10-19 C
they must be made of different material - ANSWER-When charging two objects by rubbing them
together
positive - ANSWER-An uncharged conductor is supported by an insulating stand. I pass a
positively charged rod near the left end of the conductor, but do not touch it. The right end of
the conductor will be
(d) electric charges move freely - ANSWER-Which of the following best characterizes electrical
conductors?
(a) low mass density
(b) poor heat conductors
(c) total electric charge is zero
(d) electric charges move freely
electric charges do not move freely - ANSWER-Which of the following best characterizes
electrical insulators?
volt - ANSWER-One Joule per coulomb is called
repulsion - ANSWER-In case the charges are similar the force is of
False - ANSWER-Electric Potential is a vector quantity
True - ANSWER-Electric field is a vector quantity
False - ANSWER-A negative charge sets up an electric field pointing away from the charge
source charge - ANSWER-Electric Field depends on the
F = kq1q2/r^2 - ANSWER-Formula that describes statement of coulombs law is
, may increase or decrease - ANSWER-When the separation between two charges is increased,
the electric potential energy of the charges
Franklin - ANSWER-Which scientist was one of the first to theorize that there were two types of
charges?
decreases - ANSWER-When a positive test charge moves naturally from one location to another,
its potential energy
electric potential energy per charge - ANSWER-The quantity electric potential is defined as the
amount of
negative, smaller, loosely bound - ANSWER-Charge carriers in a metal are electrons rather than
protons because electrons are
potential energy of the electron - ANSWER-Moving an electron within an electric field would
change the
7.2 x106 N/C - ANSWER-What is the electric field strength at a distance of 5 cm from a charge of
2 μC?
4F - ANSWER-Two charges separated by a distance d exert mutual attractive forces of F each
other. If these charges are separated by a distance of d/2, what are the new mutual forces?
one third its original value - ANSWER-At three times the distance from a point charge, the
electric potential is
material - ANSWER-Resistivity of a wire depends on
2R - ANSWER-Resistance of a wire is R ohms. The wire is stretched to double its length, then its
resistance in ohms is
current - ANSWER-The amount of charge flowing through a cross-sectional area of a wire per
unit of time is called
2Ω - ANSWER-Two resistors R1 = 3 Ω and R2 = 6 Ω are connected in parallel. What is the net
resistance in the circuit?
2A - ANSWER-Three resistors: R1 = 3 Ω,R2 = 6 Ω, and R3 = 9 Ω are connected in series to each
other and to a 36 V battery. What is the ammeter reading after the switch is closed?
3 watt - ANSWER-An electric lamp is labeled 6V, 0.5 A. When it is operating correctly the power
of the lamp is
electric energy - ANSWER-Which of the following quantities do householders pay for when
paying the electricity bill?
