# NCERT Class 10 Science Magnetic Effects of Electric Current

Read and download NCERT Class 10 Science Magnetic Effects of Electric Current in NCERT book for Class 10 Science. You can download latest NCERT eBooks chapter wise in PDF format free from Studiestoday.com. This Science textbook for Class 10 is designed by NCERT and is very useful for students. Please also refer to the NCERT solutions for Class 10 Science to understand the answers of the exercise questions given at the end of this chapter

## NCERT Book for Class 10 Science Chapter 13 Magnetic Effects of Electric Current

Class 10 Science students should refer to the following NCERT Book Chapter 13 Magnetic Effects of Electric Current in Class 10. This NCERT Book for Class 10 Science will be very useful for exams and help you to score good marks

### Chapter 13 Magnetic Effects of Electric Current NCERT Book Class 10

Magnetic Effects of Electric Current

In the previous Chapter on ‘Electricity’ we learnt about the heating effects of electric current. What could be the other effects of electric current? We know that an electric current-carrying wire behaves like a magnet. Let us perform the following Activity to reinforce it. We see that the needle is deflected. What does it mean? It means that the electric current through the copper wire has produced a magnetic effect. Thus we can say that electricity and magnetism are linked to each other. Then, what about the reverse possibility of an electric effect of moving magnets? In this Chapter we will study magnetic fields and such electromagnetic effects. We shall also study about electromagnets and electric motors which involve the magnetic effect of electric current, and electric generators which involve the electric effect of moving magnets.

13.1 MAGNETIC FIELD AND FIELD LINES

We are familiar with the fact that a compass needle gets deflected when brought near a bar magnet. A compass needle is, in fact, a small bar magnet. The ends of the compass needle point approximately towards north and south directions. The end pointing towards north is called north seeking or north pole. The other end that points towards south is called south seeking or south pole. Through various activities we have observed that like poles repel, while unlike poles of magnets attract each other.

QUESTION

1. Why does a compass needle get deflected when brought near a bar magnet?

2. Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right-hand rule to find out the direction of the magnetic field inside and outside the loop.

3. The magnetic field in a given region is uniform. Draw a diagram to represent it.

4. Choose the correct option.

The magnetic field inside a long straight solenoid-carrying current

(a) is zero.

(b) decreases as we move towards its end.

(c) increases as we move towards its end.

(d) is the same at all points.

5. Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer.)

(a) mass (b) speed

(c) velocity (d) momentum

6. In Activity 13.7, how do we think the displacement of rod AB will be affected if (i) current in rod AB is increased; (ii) a stronger horse-shoe magnet is used; and (iii) length of the rod AB is increased?

7. A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is

(a) towards south (b) towards east

(c) downward (d) upward

8. State Fleming’s left-hand rule.

9. What is the principle of an electric motor?

10. What is the role of the split ring in an electric motor?

11. Explain different ways to induce current in a coil.

12. State the principle of an electric generator.

13. Name some sources of direct current.

14. Which sources produce alternating current?

15. Choose the correct option.

A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each

(a) two revolutions (b) one revolution

(c) half revolution (d) one-fourth revolution

Please refer to attached file for NCERT Class 10 Science Magnetic Effects of Electric Current

### Science NCERT Book Class 10 Chapter 13 Magnetic Effects of Electric Current

The above NCERT Books for Class 10 Science Chapter 13 Magnetic Effects of Electric Current have been published by NCERT for latest academic session. The textbook by NCERT for Chapter 13 Magnetic Effects of Electric Current Science Class 10 is being used by various schools and almost all education boards in India. Teachers have always recommended students to refer to Chapter 13 Magnetic Effects of Electric Current NCERT etextbooks as the exams for Class 10 Science are always asked as per the syllabus defined in these ebooks. These Class 10 Chapter 13 Magnetic Effects of Electric Current book for Science also includes collection of question. We have also provided NCERT solutions for Class 10 Science which have been developed by teachers of StudiesToday.com after thorough review of the latest book and based on pattern of questions in upcoming exams for Class 10 students.

### NCERT Book Class 10 Science Chapter 13 Magnetic Effects of Electric Current

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#### Chapter 13 Magnetic Effects of Electric Current NCERT Book Class 10 Science

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#### Class 10 Chapter 13 Magnetic Effects of Electric Current NCERT Book Science

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