PHY 102 WEEK 4 EXAM VIEW AHEAD PAPER
2026 CORRECT RESPONSES GRADED A+
◉ What is the total charge of 5.0x10^19 protons?
q=Ne. Answer: 5.0x10^19 charges(1.602x10^-19C/charge) =8.0 C
◉ Calculate the electric F acting b/n a +5C charge and a +7.0C
charge separated by 2m.. Answer: 7.9 x 10^10N
◉ Calculate the electric F acting b/n a +8μC charge and a -2.0μC
charge separated by 40 cm.. Answer: .9 N
◉ What is the electric field if the force on a 2C charge is 10N?.
Answer: 5 N/C
◉ What is the force on a 3 C charge in the presence of a 15 N/C
electric field?. Answer: 45 N
◉ Current is measured in what units?. Answer: Amperes (A)
◉ What factor restrains the flow of current?. Answer: Ohms (Ω)
, ◉ Who is Andre-Marie Ampere? What is he considered the father
of?. Answer: French mathematician & physicist. Father of
electrodynamics
◉ What makes up the flow of charge in a metal wire?. Answer:
electrons
◉ Why don't protons move?. Answer: they are bound inside the
nuclei of atoms that are locked in fixed positions
◉ Is a current carrying wire electrically charged? Why or why not?.
Answer: NO - there are many e-s as protons in the wire
◉ Charges move only when ___________ or __________.. Answer:
PUSHED, DRIVEN
◉ Identify three types of voltage sources.. Answer: power supplies,
generators, batteries
◉ Resistance is measured in what units? Who is this unit named
after?. Answer: Ohms - Georg Simon Ohm
2026 CORRECT RESPONSES GRADED A+
◉ What is the total charge of 5.0x10^19 protons?
q=Ne. Answer: 5.0x10^19 charges(1.602x10^-19C/charge) =8.0 C
◉ Calculate the electric F acting b/n a +5C charge and a +7.0C
charge separated by 2m.. Answer: 7.9 x 10^10N
◉ Calculate the electric F acting b/n a +8μC charge and a -2.0μC
charge separated by 40 cm.. Answer: .9 N
◉ What is the electric field if the force on a 2C charge is 10N?.
Answer: 5 N/C
◉ What is the force on a 3 C charge in the presence of a 15 N/C
electric field?. Answer: 45 N
◉ Current is measured in what units?. Answer: Amperes (A)
◉ What factor restrains the flow of current?. Answer: Ohms (Ω)
, ◉ Who is Andre-Marie Ampere? What is he considered the father
of?. Answer: French mathematician & physicist. Father of
electrodynamics
◉ What makes up the flow of charge in a metal wire?. Answer:
electrons
◉ Why don't protons move?. Answer: they are bound inside the
nuclei of atoms that are locked in fixed positions
◉ Is a current carrying wire electrically charged? Why or why not?.
Answer: NO - there are many e-s as protons in the wire
◉ Charges move only when ___________ or __________.. Answer:
PUSHED, DRIVEN
◉ Identify three types of voltage sources.. Answer: power supplies,
generators, batteries
◉ Resistance is measured in what units? Who is this unit named
after?. Answer: Ohms - Georg Simon Ohm
