NCERT Class 10 Science Activity 13.3 Solution | Activity 13.3 Class 10 Science Chapter 13

 NCERT Class 10 Science Chapter 13 Activity 13.3 Solution 

In this article, we will discuss activity 13.3 class 10 science. You will find a complete explanation with a conclusion.

After studying this activity 13.3 Class 10 Science Chapter 13 Magnetic Effects of Electric Current, you will be able to solve Questions based on activity 13.3.

 

Activity 13.3 Class 10 Science Chapter 13

    ·     Take a small compass and a bar magnet.

    ·     Place the magnet on a sheet of white paper fixed on a drawing board, using some adhesive material.

    ·     Mark the boundary of the magnet.

    ·     Place the compass near the north pole of the magnet. How does it behave? The south pole of the needle points towards the north pole of the magnet. The north pole of a compass is directed away from the north pole of the magnet.

    ·     Mark the position of two ends of the needle.

    ·     Now move the needle to a new position such that its south pole occupies the position previously occupied by it north pole.

    ·     In this way, proceed step by step will you reach the south pole of the magnet as shown in the figure.

    ·     Join the points marked on the paper by a smooth curve. The curve represents a field line.

    ·     Repeat the above procedure and draw as many lines as you can. You will get a pattern shown in the figure. These lines represent the magnetic field around the magnet. These are known as magnetic field lines.

    ·     Observe the deflection in the compass needle as you move it along a field line. The deflection increases as the needle is moved towards the poles.

       

 Activity 13.3 Class 10 Science Observation 

The direction of the compass needle remains towards the south pole of the magnet.

Activity 13.3 Class 10 Science Explanation 

A bar magnet has two poles i.e. north pole and the south pole. The compass needle is also a bar magnet so it has north and south poles.

We know that similar poles of two different magnets repulse and different poles attract each other.

The magnetic field is a vector quantity so it possesses both magnitude and direction.

When the compass is placed near the north pole of the magnet, its north pole aligns itself with the south pole of the bar magnet. The direction in which the north pole of the compass needles moves is taken as the direction of the magnetic field.

At the end of this activity, we find many magnetic field lines around the bar magnet. These magnetic field lines start from the north pole and end at the south pole but inside the magnet, the direction of field lines from the south pole to the north pole.

Magnetic field lines represent a magnetic field.

Activity 13.3 Class 10 Science Conclusion 

The magnetic field is due to magnetic field lines and these liens have direction.

 

 Related Topics for you

 1. Activity 13.4 Class 10 Science

2. Activity 13.2 Class 10 Science

3. Solutions of Chapter 13