Questions
Which of the following statements is /are correct
a
Eddy currents are undesirable since they heat up the core and dissipate electrical energy in the form of heat
b
Eddy currents are minimized by using lamenations of metal separated by lacquer and by making rectangular slots on metal
c
Eddy currents are used for magnetic braking in trains, electromagnetic damping induction furnace ; electric power meter
d
all are true
detailed solution
Correct option is D
Eddy currents are produced due change is magnetic flux in a plate in small loops which can be reduced by cutting grooves and laminating , due to eddy currents conductor get heated up and it is used in magnetic breaking and electromagnetic damping.Talk to our academic expert!
Similar Questions
A conductor rod AB moves parallel to X-axis in a uniform magnetic field, pointing in the positive X-direction. The end A of the rod gets
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
Popular Books
HC Verma Part 1HC Verma Part 2RS AgarwalRD SharmaLakhmir SinghDK GoelSandeep GargTS GrewalNCERT solutions
Class 12 NCERT SolutionsClass 11 NCERT SolutionsClass 10 NCERT SolutionsClass 9 NCERT SolutionsClass 8 NCERT SolutionsClass 7 NCERT SolutionsClass 6 NCERT Solutions
