LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
208 views
in General by (24.2k points)
closed by
If the residual magnetism of a DC shunt generator is destroyed accidentally, it may be restored by connecting its shunt field:
1. in reverse
2. to a DC source
3. to an AC source
4. to the earth

1 Answer

0 votes
by (24.2k points)
selected by
 
Best answer
Correct Answer - Option 2 : to a DC source
  • Residual magnetism is the small magnetic field left in the iron cores of the shunt fields when the generator is at rest
  • Without it, the fields would have to be flashed with a DC current in order to start the generator generating; Hence to start the generator, it is necessary for the DC shunt generator
  • Once it is destroyed, it can be restored by connecting its field finding to a DC source for a short time to magnetize the poles
  • So, we need to connect the field winding to a battery (DC source)

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...