A ferrite core has less eddy current loss than an iron core because__ – McqOptions

MCQOPTIONS

1.	A ferrite core has less eddy current loss than an iron core because_______________?
A.	ferrites have high resistance
B.	ferrites are magnetic
C.	ferrites have low permeability
D.	ferrites have high hysteresis
Answer» B. ferrites are magnetic

Discussion

No Comment Found

Related MCQs

<p> If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be____________?</p>
<p> The rate of rise of current through an inductive coil is maximum_____________?</p>
<p> 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 is__________Vs</p>
<p> A material for good magnetic memory should have____________?</p>
<p> Those magnetic materials are best suited for making armature and transformer cores which have ________ permeability and ________ hystersis loss</p>
<p> Permanent magnets are normally made of_____________?</p>
<p> The unit of magnetic flux is______________?</p>
<p> Point out the wrong statement. Magnetic leakage is undesirable in electric machines because it___________?</p>
<p> An air gap is usually inserted in magnetic circuits to____________?</p>
<p> Hard steel is suitable for making permanent magnets because_____________?</p>