1000+ Magnetic Circuit MCQ Questions and Answers Pdf - 2
Question: 6
Hard steel is suitable for making permanent magnets because
(A) its mechanical strength is low
(B) its mechanical strength is high
(C) its hysteresis loop has large area
(D) it has good residual magnetism
Ans: D
it has good residual magnetism
Question: 7
M.M.F. in a magnetic circuit corresponds to ______ in an electric circuit.
(A) e.m.f.
(B) electric intensity
(C) potential difference
(D) voltage drop
Ans: A
e.m.f.
Question: 8
Permeability in a magnetic circuit corresponds to _____ in an electric circuit.
(A) conductance
(B) conductivity
(C) resistivity
(D) resistance
Ans: B
conductivity
Question: 9
Reciprocal of reluctance is
(A) susceptibility
(B) permeability
(C) permeance
(D) reluctivity
Ans: C
permeance
Question: 10
The relative permeability of a ferromagnetic material is
(A) more than one
(B) less than one
(C) more than 100 or 1000
(D) more than 10
Ans: C
more than 100 or 1000
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