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Electrical Paper-1
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97.
What is the generalized Maxwell's equation ∇ ×
H
=
J
e + ∂
D
/∂t for free space?
a. ∇ ×
H
= 0
b. ∇ ×
H
=
J
e
c. ∇ ×
H
=
∂
D
/∂t
d. ∇ ×
H
=
D
asked in
Electrical Paper-1, 2009
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98.
A long straight wire carries a current I =1 A. At what distance is the magnetic field 1Am
-1
?
(a) 1.59 m
(b) 0.159 m
(c) 0.0159 m
(d) 0.00159 m
asked in
Electrical Paper-1, 2009
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99.
Consider the following statements in connection with boundary relations of electric field.
1. In a single medium electric field is continuous.
2. The tangential components are the same on both sides of a boundary between two dielectrics.
3. The tangential electric field at the boundary of a dielectric and a current carrying conductor with finite conductivity is zero.
4. Normal component of the flux density is continuous across the charge-free boundary between two dielectrics.
Which of the above statements is/are correct?
(a) 1 only
(b) 1,2 and 3
(c) 1, 2 and 4
(d) 3 and 4
asked in
Electrical Paper-1, 2009
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