Electromagnetics Field (3140912) MCQs

MCQs of Time varying fields and Maxwell’s equations

Showing 11 to 20 out of 35 Questions
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11.
The Maxwell’s equation, ∇•B = 0 is due to
(a) B = μH
(b) B = H/μ
(c) Non-existence of a mono pole
(d) None of above
Answer:

Option (c)

12.
For free space
(a) σ = ∞
(b) σ = 0
(c) J ≠ 0
(d) None of above
Answer:

Option (b)

13.
The electric field for time varying potential is
(a) E = −∇V
(b) E = −∇V − A
(c) E = ∇V
(d) E = −∇V + A
Answer:

Option (a)

14.
Maxwell’s first equation is based on
(a) Ampere's law
(b) Faraday's law
(c) Lenz law
(d) Both (b) and (c)
Answer:

Option (d)

15.
Which of the following identities is always zero for static fields?
(a) Grad(Curl V)
(b) Curl(Div V)
(c) Div(Grad V)
(d) Curl(Grad V)
Answer:

Option (d)

16.
What will be the value of Vemf for a material having a flux linkage of 2t2 at time t = 1second?
(a) 2 Volt
(b) 4 Volt
(c) 8 Volt
(d) 16 Volt
Answer:

Option (b)

17.
Maxwell’s second equation is based on
(a) Ampere's law
(b) Faraday's law
(c) Lenz law
(d) Coulomb's law
Answer:

Option (a)

18.
For any conductor, the Maxwell's second equation is
(a) Curl(H) = Jc
(b) Curl(E) = Jc
(c) Curl(E) = Jd
(d) Curl(H) = Jd
Answer:

Option (a)

19.
For any dielectric medium, the Maxwell's second equation is
(a) Curl(H) = Jd
(b) Curl(H) = Jc
(c) Curl(E) = Jd
(d) Curl(E) = Jd
Answer:

Option (a)

20.
Continuity equation of conductors is
(a) J = σE
(b) J = E/σ
(c) J = σ/E
(d) J = ωσE
Answer:

Option (a)

Showing 11 to 20 out of 35 Questions
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