10 Question-Answer on Magnetism of earth 1. The needle of a dip circle when placed at a geomagnetic pole stays along (a) South north direction only (b) East west direction only (c) Vertical direction (d) None of above Ans: ( c) 2. The lines of force due to earth’s horizontal magnetic field are: (a) Parallel, straight and horizontal (b) Concentric circle (c) Elliptical (d) Curved lines. Ans: (a) 3. The vertical component of earth’s magnetic field is zero at; (a) Magnetic equator (b) Magnetic pole (c) Geographic pole (d) At 90˚ latitude Ans: (a) 4. A dip needle which is free to move in a vertical plane perpendicular to ...
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