Embibe Experts Solutions for Exercise 1: EXERCISE 5.1

At a certain place, the angle of dip is $30°$ and the horizontal component of earth's magnetic field is $0.50$ oersted. The earth's total magnetic field is

If a bar magnet is placed with its north pole pointing towards geographic north and magnets south pole pointing towards geographic south, then the neutral point will lie nearly along the

At certain place, vertical component of earth's magnetic field is $\sqrt{3}$ times the horizontal component of earth's magnetic field. If a magnetic needle is suspended freely in air then it will be incline

Which of the following is incorrect?

Two similar magnets of magnetic moments $M_1$ and $M_2$ are taken and vibrated in a vibration magnetometer with their $\left(a\right)$ Unlike poles together $\left(b\right)$ Like poles together respectively.
The ratio of their time period is $2: 1$. Then the ratio $M_1:M_2$ is

Which of the following magnetic field (static) lines are correctly represented?

The magnetic field lines inside a bar magnet

A bar magnet used in vibration magnetometer is heated to reduce the magnetic moment by $36\%$. Neglecting all other changes in dimensions, the time period of bar magnet in same magnetic field