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Q. If two resistors of 4Ω and 6Ω are connected in series, what is the total resistance? (2023)
  • A. 10Ω
  • B. 24Ω
  • C. 2.4Ω
  • D. 12Ω
Q. If two resistors of 4Ω and 6Ω are connected in series, what is the total voltage across them if the current is 2A? (2022)
  • A. 20V
  • B. 12V
  • C. 8V
  • D. 10V
Q. If two resistors of 5Ω and 10Ω are connected in series, what is the total resistance? (2021)
  • A.
  • B. 10Ω
  • C. 15Ω
  • D. 20Ω
Q. If U = {1, 2, 3, 4, 5} and A = {1, 2}, what is A'?
  • A. {3, 4, 5}
  • B. {1, 2}
  • C. {1, 2, 3}
  • D. {}
Q. If x = 3, what is the value of 2x^2 - 5x + 1? (2022)
  • A. -2
  • B. 0
  • C. 4
  • D. 6
Q. If x = 5, what is the value of 2x + 3? (2022)
  • A. 10
  • B. 13
  • C. 8
  • D. 15
Q. If x = 5, what is the value of 3x + 2? (2022)
  • A. 17
  • B. 15
  • C. 20
  • D. 18
Q. If you have 0.25 moles of sulfuric acid (H2SO4), what is its mass? (2023)
  • A. 49 g
  • B. 98 g
  • C. 25 g
  • D. 12.5 g
Q. If z = -2 + 2i, what is the value of |z|? (2019)
  • A. 2√2
  • B. 4
  • C. 2
  • D. √2
Q. If z = 1 + i, what is the value of z^2? (2022)
  • A. 2i
  • B. 1 + 2i
  • C. 2
  • D. 0
Q. If z = 1 + i, what is the value of z²? (2022)
  • A. 0
  • B. 2i
  • C. 2
  • D. 1 + 2i
Q. If z = 1 + √3i, what is the argument of z? (2015)
  • A. π/3
  • B. π/6
  • C. 2π/3
  • D. 3π/4
Q. If z = 2 + 2i, what is |z|^2? (2021)
  • A. 8
  • B. 4
  • C. 2
  • D. 0
Q. If z = 2 - 3i, what is the conjugate of z? (2020)
  • A. 2 + 3i
  • B. 2 - 3i
  • C. -2 + 3i
  • D. -2 - 3i
Q. If z = 3 + 4i, what is the imaginary part of z? (2022) 2022
  • A. 3
  • B. 4
  • C. 7
  • D. 1
Q. If z = 3 + 4i, what is the value of z + z* (where z* is the conjugate of z)? (2017)
  • A. 6
  • B. 8
  • C. 12
  • D. 0
Q. If z = 3 + 4i, what is the value of z + z̅? (2022)
  • A. 6
  • B. 8
  • C. 7
  • D. 5
Q. If z = 3 + 4i, what is the value of |z|^2? (2019)
  • A. 25
  • B. 7
  • C. 12
  • D. 16
Q. If z = 4 + 3i, what is the real part of z? (2023)
  • A. 4
  • B. 3
  • C. 7
  • D. 1
Q. If z = 5 + 12i, what is the argument of z? (2022)
  • A. arctan(12/5)
  • B. arctan(5/12)
  • C. π/2
  • D. 0
Q. If z = 5 + 12i, what is the imaginary part of z? (2022)
  • A. 5
  • B. 12
  • C. 17
  • D. 0
Q. If \( B = \begin{pmatrix} 2 & 3 \\ 1 & 4 \end{pmatrix} \), what is \( |B| \)? (2022)
  • A. 5
  • B. 10
  • C. 1
  • D. 8
Q. If \( E = \begin{pmatrix} 0 & 1 \\ 1 & 0 \end{pmatrix} \), what is \( |E| \)? (2023)
  • A. 0
  • B. 1
  • C. -1
  • D. 2
Q. If \( E = \begin{pmatrix} 1 & 1 \\ 1 & 1 \end{pmatrix} \), what is \( |E| \)? (2022)
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Q. If \( I = \begin{pmatrix} 1 & 1 \\ 1 & 1 \end{pmatrix} \), what is \( |I| \)? (2021)
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Q. In a body-centered cubic (BCC) structure, how many atoms are there in one unit cell? (2022)
  • A. 1
  • B. 2
  • C. 4
  • D. 8
Q. In a buffer solution, which component resists changes in pH? (2020)
  • A. Strong acid
  • B. Weak acid and its salt
  • C. Strong base
  • D. Water
Q. In a buffer solution, which of the following components is essential? (2023)
  • A. Strong acid
  • B. Weak acid and its salt
  • C. Strong base
  • D. Water
Q. In a capacitor, if the charge is doubled while the voltage remains constant, what happens to the capacitance? (2019)
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. In a capacitor, if the plate area is increased while keeping the distance constant, what happens to the capacitance? (2023)
  • A. Increases
  • B. Decreases
  • C. Remains the same
  • D. Becomes zero
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