Define and explain the following terms in case of a bar magnet:i. Axis

1.	Define and explain the following terms in case of a bar magnet:i. Axis ii. Equator iii. Magnetic length
Answer» i. Axis: It is the line passing through both the poles of a bar magnet. There is only one axis for a given bar magnet. ii. Equator: A line passing through the centre of a magnet and perpendicular to its axis is called magnetic equator. The plane containing all equators is called the equatorial plane. The locus of points, on the equatorial plane, which are equidistant from the centre of the magnet is called the equatorial circle. The popularly known ‘equator’ of the planet is actually an ‘equatorial circle’. Such a circle with any diameter is an equator. iii. Magnetic length (2l) It is the distance between the two poles of a magnet. Magnetic length (2l) = \(\frac{5}{6}\) × Geometric length.

Define and explain the following terms in case of a bar magnet:i. Axis ii. Equator iii. Magnetic length

Answer»

i. Axis: It is the line passing through both the poles of a bar magnet. There is only one axis for a given bar magnet.

ii. Equator:

A line passing through the centre of a magnet and perpendicular to its axis is called magnetic equator.
The plane containing all equators is called the equatorial plane.
The locus of points, on the equatorial plane, which are equidistant from the centre of the magnet is called the equatorial circle.
The popularly known ‘equator’ of the planet is actually an ‘equatorial circle’. Such a circle with any diameter is an equator.

iii. Magnetic length (2l)

It is the distance between the two poles of a magnet.

Magnetic length (2l) = \(\frac{5}{6}\) × Geometric length.

Discussion

No Comment Found

Related InterviewSolutions

The variation of magnetic susceptibility `(chi)` with absolute temperature `T` for a ferromagnetic material isA. B. C. D.
A magnetic needle is kept in a non uniform magnetic field . It experiencesA. A force and torqueB. A torque but not a forceC. A force but not a torqueD. neither a torque nor a force
A short bar magnet of magnetic moment `12.8xx10^(-3)Am^(2)` is arranged in the magnetic meridian with its south pole pointing geographic north. If `B_(H)=0.4` gauss, the distance between the null points isA. `4cm`B. `8cm`C. `12cm`D. `16cm`
Distinguish between dia, para and ferro magnetism with examples.
Ferro magnetic materials used in transformer must haveA. low permeability and high hysterisis lossB. high permeability and low hysterisis lossC. high permeability and high hysterisis lossD. low permeability and low hysterisis loss
Assertion: The ferromagnetic substance do not obey Curie’s Law. Reason: At Curie point a ferromagnetic substance start behaving as a paramagnetic substance.(a) If both assertion and reason are true and the reason in the correct explanation of the assertion. (b) If both assertion and reason are true but the reason is not correct explanation of the assertion.(c) If assertion is true but reason is false.(d) If the assertion and reason both are false.(e) If assertion is false but reason is true.
The magnetic susceptibility of any paramagnetic material changes with absolute temperature `T` asA. Directly proportional to TB. Remains constantC. Inversely proportional to TD. Exponentially decaying with T
State four important properties of a bar magnet.
State three important uses of a magnet.
A magnet of magnetic moment `20_(hatk) Am^(2)` is placed along the `z-`axis in a magnetic field `vec(B)=(0.4hat(j)+0.5hat(k)) T`. The torque acting on the magnet isA. `8hat(i)N-m`B. `6hat(i)N-m`C. `-8hat(i) N-m`D. `-6hat(i)N-m`

Define and explain the following terms in case of a bar magnet:i. Axis ii. Equator iii. Magnetic length

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment