Electromagnetic Field Theory - GATE practice papers - Electronics & Communication for Q. 532
Q. Which conditions are mandatory to get satisfied for the formation of a sphere ? (Marks : 01)- Published on 19 Oct 15a. 0 ≤ θ ≤ π , 0 ≤ Ф ≤ 2 π & r = constant
b. Ф = change , r = change & θ = constant
c. r → ∞ , 0 ≤ θ ≤ 2π & Ф = constant
d. Ф → ∞ , 0 ≤ θ ≤ 2π & r= constant
ANSWER: 0 ≤ θ ≤ π , 0 ≤ Ф ≤ 2 π & r = constant
A sphere is formed only when the value of an angle vector originated due to Z-axis and radius vector lies between zero and π; and the value of angle vector between X-axis & radius vector projection over XY plane is greater than zero but less than or equal to 2π ,by keeping radius vector as a constant
