Neutral points of a bar magnet , Other Engineering

  • Fix a drawing paper on a drawing board with help of drawing pins.
  • Place a magnetic needle on the drawing paper to identify geographical north and south poles.
  • Mark north, south to north indicates horizontal component of earth's magnetic field B.
  • Place a bar magnet in the middle of drawing paper such that the north pole of the bar magnet faces geographical north of earth and south pole of the magnet faces geographical south of the earth.
  • Sketch the boundaries of bar-magnet.
  • Draw magnetic lines starting from north pole of a bar magnet to south pole at difference points using a small compass. The magnetic lines of force are obtained as shown in figure.
  • Two null points N1 and N2 are obtained on either side of the bar magnet at equal distances from its centre ‘O' we will observe that magnetic needle in the compass do not show any specific direction it sets itself in an arbitrary direction at N1 and N2
  • The null points obtained are on equatorial line. At these null points the magnetic field induction due to earths magnetism (B0) and magnetic field induction due to bar magnet are equal in magnitude and opposite in direction 
  • Hence the resultant magnetic field becomes zero.

2467_Neutral points of a bar magnet.png

Posted Date: 8/28/2012 8:15:21 AM | Location : United States

Your posts are moderated
Related Questions

Fire fighting operations - high rise buildings: Inlets that allow the fire service to supplement to water to the sprinklers and to the fire mains are useful additions to the m

explain elecrochemical series and give its applications

A company issues 15-year, $1,000 par-value bonds, with a coupon rate of 5%. The bonds are sold for $619.70. The tax rate is 30%. Compute the cost of debt before taxes and after tax

BURNERS :  ATOMISER BURNERS This type of burner presents the fuel in a finely atomised spray by forcing the fuel to pass through a small orifice. The size of the orifi

PROPELLER EFFICIENCY: The propeller is 80 - 87% efficient up to approximately 400 mph.  Generally, beyond this performance will fall off, although new materials and improved bl

Pitot intakes: This intake is suitable for subsonic or low supersonic speeds. Examples, 707, 747, A300B, Tristar, etc. The intake is usually short and is very efficient becau

main difference between warping and without warping

i have a project to do a remote control car by wired and the car should go foreword and backward by increasing the speed from the joystick(1) and the sound joystick control the dir