A small bar magnet has a magnetic moment $1.2 \,A-m^2$. The magnetic field at a distance $ 0.1\, m $ on its axis will be : ($\mu_0 = 4\pi \times 10^{-7} \,T-m/A$)
A small bar magnet has a magnetic moment $1.2 \,A-m^2$. The magnetic field at a distance $ 0.1\, m $ on its axis will be : ($\mu_0 = 4\pi \times 10^{-7} \,T-m/A$)
- A
$1.2 \times 10^{-4} \,T$
- B
$2.4 \times 10^{-4} \,T$
- C
$2.4 \times 10^{4} \,T$
- D
$1.2 \times 10^{4}\, T$
Similar Questions
Write difference between electrostatic and magnetics :
Write difference between electrostatic and magnetics :
Define the intensity of magnetic field.
Define the intensity of magnetic field.
What is the magnitude of the equatorial and axial fields due to a bar magnet of length $5.0 \;cm$ at a distance of $50\; cm$ from its mid-point? The magnetic moment of the bar magnet is $0.40\; A m ^{2}$.
What is the magnitude of the equatorial and axial fields due to a bar magnet of length $5.0 \;cm$ at a distance of $50\; cm$ from its mid-point? The magnetic moment of the bar magnet is $0.40\; A m ^{2}$.
Three identical bar magnets each of magnetic moment $M$ are placed in the form of an equilateral triangle as shown. The net magnetic moment of the system is
Three identical bar magnets each of magnetic moment $M$ are placed in the form of an equilateral triangle as shown. The net magnetic moment of the system is
A magnetic needle is kept in a non-uniform magnetic field. It experiences
A magnetic needle is kept in a non-uniform magnetic field. It experiences
- [IIT 1982]