The north pole of a bar magnet is raidly introduced into a solenoid at one end (say A). Which of the following statements correctly depicts the phenomenon taking place?

The north pole of a bar magnet is rapidly introduced into a solenoid at one end (say A). Which of the following statements correctly depicts the phenomenon taking place?

The north pole of a bar magnet is rapidly introduced into a solenoid at the end A. Which of the following phenomena correctly depicts the phenomenon taking place ?

Which of the following figures depicts the position of pole star correctly?

Consider the following statements : 1. The magnetic pole in the northern hemisphere is the north magnetic pole. 2. At all points on a magnet, an iron bar gets attracted. Which one of the following statements given above is/are correct ?

A solenoid is a long helical coil of wire through which a current is runs in order to create a magnetic field. The magnetic field of the solenoid is the superposition of the fields due to the current through each coil. It is nearly uniform inside the solenoid and close to zero outside and is similar to the field of a bar magnet having a north pole at one end and a south pole at the other depending upon the direction of current flow. The magnetic field produced in the solenoid is dependent on a few factors such as, the current in the coil, number of turns per unit length etc. The following graph is obtained by a researcher while doing an experiment to see the variation of the magnetic field with respect to the current in the solenoid. The unit of magnetic field as given in the graph attached is in milli-Tesla (mT) and the current is given in Ampere. Which of the following statement is correct if a soft iron bar is placed inside the solenoid?