Laminated cores, in electrical machines, are used to reduce Options: A . &nbspCopper loss B . &nbspEddy current loss C . &nbspHysteresis loss D . &nbspAll of the above

Laminated cores, in electrical machines, are used to reduce

Question

Laminated cores, in electrical machines, are used to reduce

Options:

A . Copper loss

B . Eddy current loss

C . Hysteresis loss

D . All of the above

Answer: Option B

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Question 1. Those magnetic materials are best suited for making armature and transformer cores which have ________permeability and _....armature and transformer cores which have ________permeability and _________hysteresis loss.

Question 2. The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V ....connected to a D.C. supply of 200 V is ___________Vs

Question 3. Relative permeability of vacuum is....

Question 4. In a magnetic material hysteresis loss takes place primarily due to....

Question 5. Permeability in a magnetic circuit corresponds to_________ in an electric circuit.....

Question 6. A ferrite core has less eddy current loss than an iron core because....

Question 7. Conductance is analogous to....

Question 8. Permanent magnets are normally made of....

Question 9. Reciprocal of reluctance is....

Question 10. A material for good magnetic memory should have....

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