Answers

2016-02-24T16:40:49+05:30
I will clear ur doubt
               tv  screen is positively   charged
 when dust particle come near it then the positive charges screen attract negative charge  close to it 
   as we know unlike charges always attract each other
         so that why tv screen attract dirt
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2016-02-24T16:43:20+05:30
CUZ...OF ELECTROSTATIC FORCE .....
I GUESS
     CUZ WHEN WE TAKE OUR ARM TOWARDS IT OUR ARM'S HAIR STAND STRAIGHT.
  MAY BE SAME THING APPLIES THERE
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