PHYS 112 Exam 2 Questions and 100% Correct Answers 2026/2027
Update - UMB
Test Instruction
Calculator is allowed.
One 3×5 inch index card is allowed with anything written on both sides.
Only the Akindi (bubble) sheet will be collected and graded. Make sure you bubble your answers on the Akindi
sheet correctly.
You can write on this test, but it will not be graded.
Do NOT open this test until you are told so.
No books, notes, headphones, earbuds, electronic devices, caps with bills, or sunglasses.
Standards for academic integrity will be enforced.
All incidents of alleged academic misconduct will be reported.
Stay calm and do your best!
1
, Q1. The figure at right shows the current-versus-voltage graph for a
resistor. What is the resistance of this resistor?
A. 0.2
B. 0.5
C. 1.0
D. 1.5
E. 2.0
F. 2.5
G. 5.0
H. None of the above
Q2. The four wires below are all made of the same material; the length and radius of each wire are noted.
Which of them has the least resistance?
A. R1
B. R2
C. R3
D. R4
E. Not enough information
(Q3-Q4). A light bulb is rated as 18 V, 12 W.
Q3. What is its resistance?
A. 3.0 Ω
B. 1.5 Ω
C. 8.0 Ω
D. 0.67 Ω
E. 27 Ω
F. 216 Ω
G. None of the above
Q4. If the bulb is connected to a 36 V battery, what is the electric power dissipated?
A. 12 W
B. 6.0 W
C. 3.0 W
D. 24 W
E. 36 W
F. 48 W
G. 216 W
H. None of the above
2
Update - UMB
Test Instruction
Calculator is allowed.
One 3×5 inch index card is allowed with anything written on both sides.
Only the Akindi (bubble) sheet will be collected and graded. Make sure you bubble your answers on the Akindi
sheet correctly.
You can write on this test, but it will not be graded.
Do NOT open this test until you are told so.
No books, notes, headphones, earbuds, electronic devices, caps with bills, or sunglasses.
Standards for academic integrity will be enforced.
All incidents of alleged academic misconduct will be reported.
Stay calm and do your best!
1
, Q1. The figure at right shows the current-versus-voltage graph for a
resistor. What is the resistance of this resistor?
A. 0.2
B. 0.5
C. 1.0
D. 1.5
E. 2.0
F. 2.5
G. 5.0
H. None of the above
Q2. The four wires below are all made of the same material; the length and radius of each wire are noted.
Which of them has the least resistance?
A. R1
B. R2
C. R3
D. R4
E. Not enough information
(Q3-Q4). A light bulb is rated as 18 V, 12 W.
Q3. What is its resistance?
A. 3.0 Ω
B. 1.5 Ω
C. 8.0 Ω
D. 0.67 Ω
E. 27 Ω
F. 216 Ω
G. None of the above
Q4. If the bulb is connected to a 36 V battery, what is the electric power dissipated?
A. 12 W
B. 6.0 W
C. 3.0 W
D. 24 W
E. 36 W
F. 48 W
G. 216 W
H. None of the above
2
