Electromagnetic Field MCQs with answers Page - 6

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Q. If two vectors are orthogonal, then their scalar product is __________.

  • (A) 1
  • (B) 0
  • (C) ∞
  • (D) 100

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Q. ___________ product is governed by the Right-Hand Screw Rule.

  • (A) vector
  • (B) scalar
  • (C) simple mathematical
  • (D) none of these

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Q. The vector product obeys the __________ law.

  • (A) Commutative
  • (B) Associative
  • (C) Distributive
  • (D) Parallelogram

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Q. The cross product of the same vector to itself is ____________.

  • (A) 0
  • (B) 1
  • (C) ∞
  • (D) 100

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Q. ____________ product of two unit vectors is the third unit vector.

  • (A) vector
  • (B) scalar
  • (C) both (a) and (b)
  • (D) none of these

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Q. In a Cartesian coordinate system, axes x, y and z are at __________ to each other.

  • (A) 45°
  • (B) 90°
  • (C) 120°
  • (D) 180°

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Q. Cartesian coordinates are represented in terms of ___________.

  • (A) (r, φ, z)
  • (B) (r, θ, φ)
  • (C) (x, y, z)
  • (D) all of these

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Q. Cylindrical coordinates are represented in terms of ____________.

  • (A) (r, φ, z)
  • (B) (r, θ, φ)
  • (C) (x, y, z)
  • (D) all of these

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Q. Spherical coordinates are represented in terms of ___________.

  • (A) (r, φ, z)
  • (B) (r, θ, φ)
  • (C) (x, y, z)
  • (D) all of these

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Q. In Cylindrical coordinate systems, unit vector ar is __________.

  • (A) directed outwards radially
  • (B) normal to cylindrical surface at a point
  • (C) both (a) and (b)
  • (D) none of these

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