How does compass help to find direction 

Asked by tinapatidar2007 | 24th Feb, 2020, 09:26: PM

Expert Answer:

A device known as a compass is used as a navigational instrument.
It is usually a small box witha glass cover. It has a dial with directions marked on it, and a magnetised needle is pivoted inside the box, which can rotate freely.
The compass is kept at a place where directions are to be found and is rotated until the north(N)and the south (S) marked on the dial are at the two ends of the needle.
The magnetic needle comes to rest in N-S direction because the north pole of the earth's magnet is attracted to the South pole of magnetic needle and South pole of the earth's magnet is attracted to the North pole of magnetic needle. 
The  ‘N’  mark  on  the  compass  points  to  the  north.  North  corresponds  to  0°. 
The angles  increase clockwise. So, East is 90°, South is 180° and West is 270°. 

Answered by Shiwani Sawant | 25th Feb, 2020, 10:48: AM