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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