JEE Advanced 2021 Pattern Quiz

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What is the characteristic of the special metal S?

It does not conduct electricity at all

It conducts electricity with some resistance

It only conducts electricity under certain conditions

It conducts electricity without any resistance (correct)

What is the purpose of the induced current in the loop?

To generate heat in the loop

To repel the magnetic dipole (correct)

To attract the magnetic dipole

To change the flux through the loop

What is the direction of the magnetic dipole's north pole with respect to the loop?

Always facing the loop (correct)

Alternating between facing and away from the loop

Perpendicular to the loop

Always facing away from the loop

What is the formula for the magnitude of the magnetic field of a dipole m, at a point on its axis at distance r?

$\frac{μ_0 m}{2π r^2}$ Signup and view all the answers

Why does the induced current in the loop not decay?

Due to the metal's zero resistance Signup and view all the answers

What is the condition for the distance r of the magnetic dipole from the loop's centre?

r >> a Signup and view all the answers

What is the direction of the force between two magnetic dipoles with moments m1 and m2, separated by a distance r on the common axis?

Along the line joining the two dipoles Signup and view all the answers

What is the current induced in the loop when a magnetic dipole is placed at a distance r from the center of the loop?

Proportional to m/r2 Signup and view all the answers

What is the work done in bringing a magnetic dipole from infinity to a distance r from the center of the loop?

Proportional to m2/r6 Signup and view all the answers

What is the magnitude of the force between two magnetic dipoles with moments m1 and m2, separated by a distance r on the common axis?

km1m2/r4 Signup and view all the answers

What is the direction of the magnetic field lines of a magnetic dipole?

From south pole to north pole Signup and view all the answers

What is the physical significance of the magnetic moment of a magnetic dipole?

It measures the torque experienced by a dipole in a magnetic field Signup and view all the answers

What is the direction of the magnetic field B?

normal to the xy plane Signup and view all the answers

What is the condition for BP = 0?

i2 = 2i1 Signup and view all the answers

What is the nature of the magnetic field at the centre?

inwards Signup and view all the answers

JEE Advanced 2021 Pattern Quiz

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Questions and Answers

What is the characteristic of the special metal S?

What is the purpose of the induced current in the loop?

What is the direction of the magnetic dipole's north pole with respect to the loop?

What is the formula for the magnitude of the magnetic field of a dipole m, at a point on its axis at distance r?

Why does the induced current in the loop not decay?

What is the condition for the distance r of the magnetic dipole from the loop's centre?

What is the direction of the force between two magnetic dipoles with moments m1 and m2, separated by a distance r on the common axis?

What is the current induced in the loop when a magnetic dipole is placed at a distance r from the center of the loop?

What is the work done in bringing a magnetic dipole from infinity to a distance r from the center of the loop?

What is the magnitude of the force between two magnetic dipoles with moments m1 and m2, separated by a distance r on the common axis?

What is the direction of the magnetic field lines of a magnetic dipole?

What is the physical significance of the magnetic moment of a magnetic dipole?

What is the direction of the magnetic field B?

What is the condition for BP = 0?

What is the nature of the magnetic field at the centre?

What is the reason for the magnetic field changing rapidly as point P approaches the circumference?

What can be said about the magnetic field inside the inner loop?

What is the relationship between x1 and x2?

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