Q. What is the length of the latus rectum of the ellipse x^2/36 + y^2/16 = 1?
  • A. 8/3
  • B. 12
  • C. 16/3
  • D. 24
Q. What is the length of the latus rectum of the ellipse x^2/a^2 + y^2/b^2 = 1?
  • A. 2b^2/a
  • B. 2a^2/b
  • C. 2a
  • D. 2b
Q. What is the length of the latus rectum of the parabola y^2 = 12x?
  • A. 3
  • B. 6
  • C. 12
  • D. 24
Q. What is the length of the latus rectum of the parabola y^2 = 4ax?
  • A. 2a
  • B. 4a
  • C. a
  • D. None of the above
Q. What is the length of the latus rectum of the parabola y^2 = 8x?
  • A. 4
  • B. 8
  • C. 2
  • D. 16
Q. What is the length of the line segment joining the points (-1, -1) and (2, 3)?
  • A. 3
  • B. 4
  • C. 5
  • D. 6
Q. What is the length of the line segment joining the points (1, 2) and (1, 5)?
  • A. 3
  • B. 4
  • C. 2
  • D. 5
Q. What is the length of the median from vertex A to side BC in triangle ABC with sides a = 6, b = 8, c = 10?
  • A. 5
  • B. 6
  • C. 7
  • D. 8
Q. What is the length of the segment of the line 3x + 4y = 12 between the x-axis and y-axis?
  • A. 5
  • B. 6
  • C. 7
  • D. 8
Q. What is the limit of (1/x) as x approaches infinity?
  • A. 0
  • B. 1
  • C. Infinity
  • D. -Infinity
Q. What is the limit of (x^2 - 1)/(x - 1) as x approaches 1?
  • A. 0
  • B. 1
  • C. 2
  • D. Infinity
Q. What is the limit of f(x) = 1/x as x approaches 0 from the right?
  • A. 0
  • B. Infinity
  • C. 1
  • D. Does not exist
Q. What is the limiting reagent when 3 moles of A react with 2 moles of B to produce 4 moles of C?
  • A. A
  • B. B
  • C. C
  • D. None
Q. What is the limiting reagent when 5 moles of A react with 3 moles of B in the reaction A + 2B → C?
  • A. A
  • B. B
  • C. C
  • D. None
Q. What is the magnetic field at a distance r from an infinitely long straight wire carrying current I?
  • A. μ₀I/2πr
  • B. μ₀I/4πr
  • C. μ₀I/πr
  • D. 0
Q. What is the magnetic field at a point due to a long straight current-carrying conductor using Biot-Savart Law?
  • A. μ₀I/(2πr)
  • B. μ₀I/(4πr²)
  • C. μ₀I/(2r)
  • D. μ₀I/(4r)
Q. What is the magnetic field at a point on the axis of a circular loop of radius R carrying current I?
  • A. μ₀I/(2R)
  • B. μ₀I/(4R)
  • C. μ₀I/(2R²)
  • D. μ₀I/(2√2R)
Q. What is the magnetic field at a point on the axis of a circular loop of radius R carrying a current I at a distance x from the center?
  • A. (μ₀I)/(2R) * (R²/(R²+x²)^(3/2))
  • B. (μ₀I)/(4R) * (R²/(R²+x²)^(3/2))
  • C. (μ₀I)/(2R) * (1/(R²+x²)^(3/2))
  • D. (μ₀I)/(4R) * (1/(R²+x²)^(3/2))
Q. What is the magnetic field at the center of a circular loop of radius R carrying current I?
  • A. μ₀I/2R
  • B. μ₀I/R
  • C. μ₀I/4R
  • D. μ₀I/πR
Q. What is the magnetic field at the center of a circular loop of radius R carrying a current I?
  • A. μ₀I/(2R)
  • B. μ₀I/(4R)
  • C. μ₀I/(R)
  • D. μ₀I/(8R)
Q. What is the magnetic field at the center of a square loop of side a carrying current I?
  • A. μ₀I/4a
  • B. μ₀I/2a
  • C. μ₀I/a
  • D. μ₀I/8a
Q. What is the magnetic field at the midpoint of a wire carrying current I in opposite directions?
  • A. Zero
  • B. μ₀I/2
  • C. μ₀I
  • D. Depends on distance
Q. What is the magnetic field due to a circular loop of radius R carrying current I at a point on its axis at a distance x from the center?
  • A. μ₀I/(2R)
  • B. μ₀I/(2(x² + R²)^(3/2))
  • C. μ₀I/(4πR)
  • D. μ₀I/(x² + R²)
Q. What is the magnetic field due to a current I flowing through a straight wire at a distance d?
  • A. μ₀I/(2πd)
  • B. μ₀I/(4πd²)
  • C. μ₀I/(d)
  • D. μ₀I/(2d)
Q. What is the magnetic field due to a current loop at a point on its axis?
  • A. μ₀I/2R
  • B. μ₀I/4R
  • C. μ₀I/2R²
  • D. μ₀I/4R²
Q. What is the magnetic field due to a long straight wire carrying current I at a distance r from the wire?
  • A. μ₀I/2πr
  • B. μ₀I/4πr
  • C. μ₀I/πr
  • D. μ₀I/8πr
Q. What is the magnetic field due to a magnetic dipole at a point along its axial line?
  • A. (μ₀/4π) * (2m/r³)
  • B. (μ₀/4π) * (m/r³)
  • C. (μ₀/4π) * (m/r²)
  • D. (μ₀/4π) * (m/r⁴)
Q. What is the magnetic field due to a solenoid of length L, carrying n turns per unit length and current I?
  • A. μ₀nI
  • B. μ₀nI/L
  • C. μ₀nI/2
  • D. μ₀nI/L²
Q. What is the magnetic field due to a straight conductor at a point 1 meter away carrying a current of 5 A?
  • A. 0.01 T
  • B. 0.02 T
  • C. 0.03 T
  • D. 0.04 T
Q. What is the magnetic field due to a straight wire at a distance of 0.5 m carrying a current of 10 A?
  • A. 0.4 μT
  • B. 0.2 μT
  • C. 0.1 μT
  • D. 0.8 μT
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