Skip to main content

Electricity and magnetism.

ELECTRIC  EFFECTS  results  from  an  imbalance  of   electric   charge .There   are   two  types  of  electric  charge , named  positive(carried by protons) and  negative  (carried  by  electrons).If  charges   are  opposites  (unlike), they  attract   one  another, while  like  charge  repel.Forces  of  attraction  and   repulsion (electrostatic  forces) exist  between  any  two  charged   particles .Matter  is  normally   uncharged  , but   if  electrons  are gained  , an  object  will  gain  an  overall  negative  charge ;if  they  are  removed , it  becomes positive .Objects  with an overall   negative   or  positive  charges  are  said to  have  an   imbalance   of  charge, and  exert  the  same  forces  as individual   negative  and  positive   charge .On  this    larger  scale,the  forces  will  always   act  to  regain  the  balance  of  charge. This  causes  static  electricity .Lightning   ,for  example , is  produced  by  clouds  discharging  a  huge  excess  of  negative   electrons .If  charges  are " free  "-in a wire  or material  that  allows  electrons  to  pass through  it -  the   forces  causes    a  flow  of  charge called  an  electric current
MAGNETISM.
Some  substances   exhibit  the  strange  phenomenon  of magnetism -which  also  produced    attractive   and  repulsive   forces. Magnetic  substances  consists  of  small   regions  called  domains.Normally   unmagnetized  ,they  can  be  magnetized  by  being  placed  in  a  magnetic field .Magnetism   and  electricity  are  inextricably   linked , a  fact   put  to  use   in   motors and  generators. 

Comments

Popular posts from this blog

KEY BOARD SHORT CUTS

While   surfing  the Web,  these commands  could  help  you  and  are absolutely worth learning. By making repetitive motions faster, web surfing becomes so easy  and    pleasant! The following shortcuts can  be   work with desktop versions of Chrome, Firefox, and IE. CTRL-T to launch a new browser tab page. Tabbed pages are very useful: they let you open multiple web pages simultaneously without the same memory load as a full browser window.  Simply press CTRL-T to launch a new tab. Related: use CTRL-Page Up and CTRL-Page Down to navigate between the tabs.  CTRL-Enter to type 'www.' and '.com' Once you ...

THE KING OF POP- MICHAEL JACKSON

Michael Joseph Jackson (August 29, 1958 – June 25, 2009) was an American singer, songwriter, and dancer. Dubbed the "King of Pop", he is regarded as one of the most significant cultural figures of the 20th century and one of the greatest entertainers in the history of music.   Michael Jackson is born. Pop sensation Michael Jackson is born on August 29, 1958, in Gary, Indiana. Jackson began performing with his four brothers in the pop group the Jackson 5 when he was a child. ... Jackson released several solo albums in the '70s, but his great breakthrough came in 1979 with Off the Wall.   Known as the "King of Pop," Michael Joseph Jackson was a best-selling American singer, songwriter and dancer. As a child, Jackson became the lead singer of his family's popular Motown group, the Jackson 5.   As a child, Jackson became the lead singer of his family's popular Motown group, the Jackson 5. He went on to a solo career of astonishing w...

THE BEATLES -ENGLISH ROCK BAND

The Beatles were an English rock band formed in Liverpool in 1960. The group, whose best-known lineup comprised John Lennon, Paul McCartney, George Harrison and Ringo Starr, are regarded as the most influential band of all time.   The Beatles    were  from    Liverpool, United Kingdom.   In September of 1962 The Beatles recorded their first hit Love Me Do, which charted in UK, and reached the top of the US singles chart. London became their new home since 1963. ... Their October 1963 performance at the London Palladium made them famous in Great Britain and initiated the Beatlemania in the UK.   The most popular Beatle.   Paul McCartney ranked highest, at 35 percent; following by John Lennon (29%), Ringo Starr (11%), and George Harrison (8%). However, there is a gender gap: men favored John, while women preferred Paul.   The Beatles' first record "Love Me Do" was released on October 5, 1962. It was a mode...