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psl.
( a ) Define : unit magnetic pole , strength of magnetic field . ( b ) Two bar magnets , exactly alike , are 10 cm . long and have poles of strength 50. The magnets are placed in the same line , the north pole of one facing the south ...
( a ) Define : unit magnetic pole , strength of magnetic field . ( b ) Two bar magnets , exactly alike , are 10 cm . long and have poles of strength 50. The magnets are placed in the same line , the north pole of one facing the south ...
psl.
Show that the magnetic intensity at a point along the line of the axis of a bar magnet , r cm . from its centre , is magnet ( r is large compared with the length of 4. (a) Show that there are two points ...
Show that the magnetic intensity at a point along the line of the axis of a bar magnet , r cm . from its centre , is magnet ( r is large compared with the length of 4. (a) Show that there are two points ...
psl.
magnet ( r is large compared with the length of the magnet ) . 10. ... ( d ) Describe generally the form of curve which gives the relation between the magnetic induction , and the magnetizing force in soft iron . 11.
magnet ( r is large compared with the length of the magnet ) . 10. ... ( d ) Describe generally the form of curve which gives the relation between the magnetic induction , and the magnetizing force in soft iron . 11.
psl.
( a ) Assuming La Place's law , find an expression for the magnetic intensity at any point along the axis of a circular wire bearing a current of i e . m . units . ( b ) Show that the magnetic intensity at the centre of a long narrow ...
( a ) Assuming La Place's law , find an expression for the magnetic intensity at any point along the axis of a circular wire bearing a current of i e . m . units . ( b ) Show that the magnetic intensity at the centre of a long narrow ...
psl.
( c ) Outline briefly a method of using a ballistic galvanometer to measure the strength of an unknown magnetic field . 4. The following sets of readings were taken with a Queen's University Examinations : April , 1914 .
( c ) Outline briefly a method of using a ballistic galvanometer to measure the strength of an unknown magnetic field . 4. The following sets of readings were taken with a Queen's University Examinations : April , 1914 .
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