The Total solution for NCERT class 6-12
At a certain location inAfrica, a compass points 12┬║ west of the geographic north. The north tip of themagnetic needle of a dip circle placed in the plane of magnetic meridian points60┬║ above the horizontal. The horizontal component of the earthтАЩs field ismeasured to be 0.16 G. Specify the direction and magnitude of the earthтАЩs fieldat the location.
Angle of declination,╬╕┬а=12┬░
Horizontal component ofearthтАЩs magnetic field,┬аBH┬а= 0.16 G
EarthтАЩsmagnetic┬аfield at the given location =┬аB
EarthтАЩs magnetic fieldlies in the vertical plane, 12┬░┬аWest of the geographic meridian, making anangle of 60┬░┬а(upward) with the horizontal direction. Its magnitude is 0.32G.