A compass needle oscillates 20 times per minute at a place where the dip is `45^@` and 30 times per minute where the dip is `30^@` compare the total magnetic field due to the earth at the two places.

What is the angel of dip at a place where the horizontal and vertical components of the Earth's magnetic field are equal?

The angle of dip at any place is 30^@ , and the Horizontal component of earths magnetic field is 0.5 T . What will be the value of magneticfield at that place?

The angle pf dip and the horizontal component of earth's magnetic field at a place are 30^(@)S and 0.36 Oe . Determine the magnitude and direction of the vertical component of earth 's magnetic field at thet place .

The vertical component of earth’s magnetic field is zero at a place when angle of dip is—

A conducting wire of length 30 cm revolves 1000 times per minute about one of its ends and perpendicular to the direction of a magnetic field of 0.5 T. Determine the emf induced across the ends of the wire.

At a place A intensity of geomagnetic field is 39.8A.m^(-1) And angle of dip is 60^(@) At another place B, intensity is 43.8A.m^(-1) and angle of dip is 72^(@) . compare the horizontal components of geomagnetic intensity at these two place.

At a place , the angle of declination is 30^(@)E and the angle of dip is 45^(@)N . Determine the horizontal and vertical components of the geomagnetic intensity in geographical meridian at that place. Given , the horizontal component of earth's magnetic field at that place = 0.3 Oe .