Questions in magnetism

Select	Question
	A compass needle will show which one of the following directions at the earth's magnetic pole
	The north pole of the earth's magnet is near the geographical
	The magnetic field of earth is due t
	A short magnet of moment $6.75 Am^2$ produces a neutral point on its axis. If horizontal component of earth's magnetic field is $5 \times {10^{ - 5}}Wb/{m^2}$, then the distance of the neutral point should be
	Due to the earth's magnetic field, charged cosmic ray particles
	Two bar magnets with magnetic moments $2 M$ and $M$ are fastened together at right angles to each other at their centres to form a crossed system, which can rotate freely about a vertical axis through the centre. The crossed system sets in earth’s magnetic field with magnet having magnetic moment $2M$ making and angle $\theta$ with the magnetic meridian such that
	Angle of dip is $90^o$ at
	At a certain place the horizontal component of the earth’s magnetic field is $B_0$ and the angle of dip is $45^o$. The total intensity of the field at that place will be
	The value of angle of dip is zero at the magnetic equator because on it
	Which of the following relation is correct in magnetism