Tag: properties of magnet

${\vec E}$ must be parallel to ${\vec B}$

${\vec V}$ must be perpendicular to Electric field

${\vec V}$ must be parallel to ${\vec B}$

$E$ must be equal to $vB$.

0.4$\pi \mu T$

4$\pi \mu T$

4$\mu T$

40$\pi \mu T$

Strong magnetic fields

An area of magnetic field

A region called magnetic domain

A bar magnet

a bar magnet with an area of $1 mm^2$

a spinning electron

a magnetic dipole

a molecule or atom with a magnetic dipole

Parallel to each other

Perpendicular to each other

Pointing towards south

Pointing in different direction

atomic current and intrinsic spin of electrons.

polar and non polar nature of molecules.

pauli exclusion principle.

electronegative nature of materials

Both will reach the floor at the same time

$1$ lb weight will reach the floor first

$10$ lb weight will reach the floor first

It is not possible to indicate which of the two will reach the floor first without further data

Earth's geographic South Pole

Earth's geographic North Pole

A magnet's south pole

A magnet's north pole

There are atleast two magnetic field

There are two uniform magnetic fields mutually perpendicular to each other

One strong magnetic field and the other weak magnetic field

In the present magnetic fields one should be horizontal component of the earth's magnetic field

will stay in north-south direction only

will stay in east -west direction only

will become rigid showing no movement

will stay in any position