Electromagnetics Field (3140912) MCQs

MCQs of Review of Vector Analysis

Showing 1 to 10 out of 31 Questions
1.
Cross product can be used to calculate
(a) Angle between two vectors
(b) Area of triangle
(c) Area of Parallelogram
(d) All of the above
Answer:

Option (d)

2.
Find the angle between following two vectors A = 3 ax+4 ay + azB = 2 ay - 5  az
(a) 83.7°
(b) 87.3°
(c) -83.7°
(d) -87.3°
Answer:

Option (a)

3.
Find area of parallelogram formed using following two vectors AB = 3 ax+4 ay + azAC = 2 ay - 5  az
(a) 3
(b) 27.3
(c) 13.7
(d) Insufficient Data
Answer:

Option (b)

4.
The unit vector directed from point A(2,5,1) to point B(-1,4,-2) can be expressed as
(a) 0.69 ax+0.23 ay + 0.69 az
(b) 0.69 ax-0.23 ay + 0.69 az
(c) -0.69 ax-0.23 ay  - 0.69 az
(d) -0.69 ax+0.23 ay  - 0.69 az
Answer:

Option (c)

5.
The component of force F = 10 ax-6 ay +5 az in the direction of vector A = 0.1 ax+0.2 ay +0.3 az will be close to
(a) 1.3
(b) 3.7
(c) 9.9
(d) 3.5
Answer:

Option (d)

6.
The volume of a space defined in cylindrical coordinate system by following details will be ________ m3. 4 <r<6, 30°<<60°, 2<z<5
(a) 15.7
(b) 900
(c) 31.4
(d) 450
Answer:

Option (a)

7.
The spherical surface defined by following data will be _________ m2. r=2, 60°<<90°, 0°<θ<90°
(a) 2.1
(b) 1
(c) 3.14
(d) 4.2
Answer:

Option (a)

8.
Point P(10,π6,π3) in Cartesian coordinates will be ________ .
(a) P(2.5,-4.33,8.66)
(b) P(2.5,4.33,8.66)
(c) P(6,-3.46,4)
(d) P(6,3.46,4)
Answer:

Option (b)

9.
Point P(2.5,4.33,8.66) in Cylindrical coordinate system will be ___________ .
(a) P(5,30°,8.66)
(b) P(8.66,60°,5)
(c) P(5,60°,8.66)
(d) P(8.66,30°,5)
Answer:

Option (c)

10.
Point P(-2,6,3) in Spherical coordinate system will be ________ .
(a) P(7,64.6°,71.5°)
(b) P(7,64.6°,-71.5°)
(c) P(7,64.6°,-108.4°)
(d) P(7,64.6°,108.4°)
Answer:

Option (d)

Showing 1 to 10 out of 31 Questions