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Write 5 diffe...

Question

Write 5 differences between permanent and temporary magnets

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Solution

Dear student,
$P e r m a n e n t m a g n e t : - 1) T h e b a r m a g n e t i s a p e r m a n e n t m a g n e t . 2) A p e r m a n e n t m a g n e t p r o d u c e s a c o m p a r a t i v e l y w e a k f o r c e o f a t t r a c t i o n . 3) T h e s t r e n g t h o f a p e r m a n e n t m a g n e t c a n n o t b e c h a n g e d . 4) T h e (n o r t h - s o u t h) p o l a r i t y o f a p e r m a n e n t m a g n e t i s f i x e d a n d c a n' t b e c h a n g e d . 5) I t i s h a r d m a g n e t . T e m p o r a r y m a g n e t : - 1) A n e l e c t r o m a g n e t i s a t e m p o r a r y m a g n e t . i t s m a g n e t i s m i s o n l y f o r t h e d u r a t i o n o f c u r r e n t p a s \sin g t h r o u g h i t . S o, t h e m a g n e t i s m o f a n e l e c t r o m a g n e t c a n b e s w i t c h e d o n o r s w i t c h e d o f f a s d e s i r e d . 2) A n e l e c t r o m a g n e t c a n p r o d u c e v e r y s t r o n g m a g n e t i c f o r c e . 3) T h e s t r e n g t h o f a n e l e c t r o m a g n e t c a n b e c h a n g e d b y c h a r g i n g t h e n o . o f t u r n s i n i t s c o i l o r b y c h a n g i n g t h e c u r r e n t p a s \sin g t h r o u g h i t . 4) T h e p o l a r i t y o f a n e l e c t r o m a g n e t c a n b e c h a n g e d b y c h a n g i n g t h e d i r e c t i o n o f c u r r e n t i n i t s c o i l 5) I t i s s o f t m a g n e t$
Regards

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