Question

Define angular velocity Hence write Its unit and dimensions?

Answer 1

Answer


Any device which has magnetic north pole and south pole on opposite sides is known as a magnetic dipole. It can be a bar magnet, a bar electromagnet, a current carrying ring or a solenoid etc.
The strength of a pole of a dipole is called pole strength. Its SI unit is ampere.metre A.m, and denoted by m.
In any dipole the pole strength of both the poles are always equal. The product of the strength of one of the poles and the distance between the poles is known as magnetic dipole moment. It is denoted by M and its SI unit is ampere.metre
2
Am
2
.
When a magnetic material like iron is placed in a magnetic field, it gets a magnetic dipole moment. The magnetic dipole moment acquired per unit volume is known as magnetisation. Its SI unit will be
m
3

Am
2

​
=
m
A
​
.
Its dimension is [L
−1
M
0
T
0
I
1
].

Answer 2

Answer:

In physics, angular velocity, also known as angular frequency vector, is a vector measure of rotation rate, that refers to how fast an object rotates or revolves relative to another point, i.e. how fast the angular position or orientation of an object changes with time.

units: m/s

dimension: [M0 L1 T-1].