CS/B.TECH (EIE-New)/SEM-4/EE-402(EI)/2012
2012
FIELD THEORY
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
(Multiple Choice Type Question)
1. Choose the correct alternatives for any ten of the following:
10 x 1 = 10
i) Stokes Theorem state that
a) A .dL=(∇ ×A) .dS 
b) A .dL=(∇ . A) .dS
c) A .dS=(∇ . A) .dL
d) A .dS=(∇ ×A) .dL
ii) The magnetic field intensity H for an infinite straight current at a distance ρ in cylindrical co-ordinate is
a) H=1ρ aϕ b) H=12πρ aρ
c) H=12πρ aϕ d) H=14πρ aϕ
iii) Magnetic flux density B and magnetic vector potential A are related as
a) B=∇ . A b) B=-∇ . A
c) ∇ × B=A d) B=∇ × A