Magnetisation of a material is the magnetic dipole moment per m3. True False

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Question
Magnetisation of a material is the magnetic dipole moment per m³.
Options
A. True
B. False

Correct Answer

True

Materials and Components problems

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2. The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as
Options
A. Matthiessen's rule
B. Debye rule
C. Curie rule
D. Onne's rule

4. In a metal, the valence electrons
Options
A. are not shared
B. are shared only between neighbouring atoms
C. are shared by all atoms
D. either (b) or (c)

5. Assertion (A): A capacitor with imperfect dielectric can be represented by a capacitance in parallel with resistance.
Reason (R): For imperfect dielectrics, dielectric constant has real and imaginary parts.
Options
A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true

7. Fleming's left hand rule is used to find
Options
A. direction of force on a current carrying conductor
B. direction of flux in solenoid
C. direction of magnetic field due to a current carrying conductor
D. direction of induced emf

8. Which inductor is used at high frequencies?
Options
A. Cast iron cored
B. Sheet steel cored
C. Iron alloy cored
D. Ceramic cored

10. By inserting a plate of dielectric between the plates of a parallel plate capacitor, the energy stored in the capacitor is increased five times. The dielectric constant of material is
Options
A.
B.
C. 5
D. 25

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