You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Torque

The pole stre...

Question

The pole strength of a bar magnet is 2 Am. If the field at poles are 0.2 T and 0.22 T, then the force acting on the bar magnet is
( consider field direction to be same)

0.4N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.04N

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

0.44N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.8N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C 0.04N
$m = 2 A m$ (given)
$B n e t = B_{2} - B_{1}$
$= 0.22 - 0.2$
$= 0.02 T$
$F = m B n e t$
$= 0.04 N$

Suggest Corrections

Similar questions

Q. A bar magnet of moment

4 A m^{2}

is placed in a non-uniform magnetic field. If the field strength at poles are 0.2 T and 0.22 T then the maximum couple acting on it is

Q. A bar Magnet of pole strength

2 A m

is kept in a magnetic field of induction

4 \times 10^{- 5} W b / m^{2}

such that the axis of magnet makes an angle

30^{o}

with the direction of the field. The couple acting on the magnet is found to be

80 \times 10^{- 7} N m

. Then the distance between the two poles of the magnet is :

Q. Assertion :Magnetic field strength at a point on axial line of a bar magnet is along south to north pole of magnet. Reason: The magnetic field strength can never be along north to south pole of a magnet.

A magnet of magnetic moment $1.525 \times 10^{- 3} A . m^{2}$ . is placed in a magnetic field of induction field strength $0.1 g a u s s$ , perpendicular to the field direction. Then each pole experiences a force of $0.305 d y n e s$ . The distance between the two poles of the magnet is

Q. The couple acting on a bar magnet of pole strength

4 Am

, when placed in a uniform magnetic field of intensity

10 \sqrt{3} {Am}^{- 1}

, such that axis of the magnet makes an angle

60^{\circ}

with the direction of the field is

80 \times 10^{- 6} Nm

. Find the distance between the poles of the magnet is,

Join BYJU'S Learning Program

The pole strength of a bar magnet is 2 Am. If the field at poles are 0.2 T and 0.22 T, then the force acting on the bar magnet is( consider field direction to be same)

The correct option is C 0.04Nm=2Am (given)Bnet=B2−B1=0.22−0.2=0.02TF=mBnet=0.04N

The pole strength of a bar magnet is 2 Am. If the field at poles are 0.2 T and 0.22 T, then the force acting on the bar magnet is
( consider field direction to be same)

The correct option is C 0.04N
$m = 2 A m$ (given)
$B n e t = B_{2} - B_{1}$
$= 0.22 - 0.2$
$= 0.02 T$
$F = m B n e t$
$= 0.04 N$