Monday, July 23, 2012

CBSE PHYSICS: ASSIGNMENT ON MAGNETIC EFFECTS OF CURRENT

CBSE PHYSICS: ASSIGNMENT ON MAGNETIC EFFECTS OF CURRENT
Topic Wise: CBSE PHYSICS  TYPE  A MAGNETIC FIELD and  FIELD LINES
1. What effects do you expect on passing current through a conductor?
2. How it can be shown that a current carrying conductor produces a magnetic field?
3. Why compass always align itself in approximately north–south direction?
4. Why some substances exhibit magnetism naturally, while others don’t?
5. What do you mean by ‘magnetic field lines’? 
6. List the characteristics of magnetic field lines?
7. How magnetic field lines are drawn?
8. How one can represent a region of uniform magnetic field using magnetic field lines?
9. Why two magnetic field lines never cross each other?
10. What is the direction of magnetic field line?
11. What is necessary to have a magnetic field? 
12. What do you mean by magnetic field?
13. If equal number of electrons and proton travels in same direction, will be any magnetic field produced?
14. Is it possible that magnetic field line emerging out of north pole of one bar magnet can enter the south pole of another bar magnet?
15. Can magnetic field lines of two different bar magnets cross each other on bringing the bar magnets closer? Read full post

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