# CBSE 10th Science Board Exam 2020: Practice Important MCQs from Chapter 13 – Magnetic effect of electric current

MCQ Questions for Class 10 Science Magnetic effect of electric current with Answers: Students CBSE Board Exams 2020 Time Table is out now. The board is going to conduct a Class 10 CBSE Science Exam on 4th March 2020. As per their official notification, this time CBSE Exam Pattern 2020 is having slight changes. The board decided to add MCQ Questions for Class 10 CBSE Board Exams. Here, you will find important MCQs from CBSE Class 10 Science Chapter 13 Magnetic effect of electric current along with the answers.

## CBSE Class 10 Science MCQs of Magnetic effect of electric current with Answers

Such Multiple Choice Type Questions are ideal to brushes your basic concepts to answer in CBSE Class 10 Science Exam 2020. Also, this objective type questions will help you to adjust with all various approaches. In this article, we have provided Magnetic effect of electric current MCQ Questions for Class 10 CBSE Science Exam 2020 with a detailed explanation of answers. It makes easy to grasp the in-depth concept and logic of the question. So, practice below provided MCQ’s of CBSE Class 10 Chapter 13 Magnetic effect of electric current topics to score maximum marks in your pre-board and final board exams.

Question 1. The best material to make permanent magnets is
(a) aluminium
(b) soft iron
(c) copper
(d) alnico

Question 2. The magnetic field lines always begin from
(a) N-pole and end on S-pole.
(b) S-pole and end on N-pole.
(c) start from the middle and end at N-pole.
(d) start from the middle and end at S-pole.

Question 3. The magnetic field is the strongest at
(a) middle of the magnet.
(b) north pole.
(c) south pole.
(d) both poles.

Question 4. Material of the core of a strong magnet is
(a) aluminium
(b) soft iron
(c) copper
(d) steel

Question 5. Magnetic lines of force inside current carrying solenoid are
(a) perpendicular to axis.
(b) along the axis and are parallel to each other.
(c) parallel inside the solenoid and circular at the ends.
(d) circular.

Question 6. A soft iron bar is introduced inside a current carrying solenoid. The magnetic field inside the solenoid
(a) will become zero.
(b) will increase.
(c) will decrease.
(d) will remain unaffected.

Question 7. An electric generator actually acts as
(a) a source of electric charge.
(b) a source of neat energy.
(c) an electromagnet.
(d) a converter of energy.

Question 8. A magnetic field directed in north direction acts on an electron moving in east direction. The magnetic force on the electron will act
(a) vertically upwards.
(b) towards east.
(c) vertically downwards.
(d) towards north.

Question 9. The direction of force on a current carrying conductor in a magnetic field is given by
(a) Fleming’s left hand rule.
(b) Fleming’s right hand rule.
(c) Right hand thumb rule.
(d) Left hand thumb rule.

Question 10. The direction of induced current is given by
(a) Fleming’s right hand rule.
(b) Fleming’s left hand rule.
(c) Right hand thumb rule.
(d) Left hand thumb rule.

Question 11. Switches are connected to
(a) live wire.
(b) neutral wire.
(c) earth wire.
(d) any one.

Question 12. The most important safety method used for protecting home appliances from short-circuiting or Overloading is
(a) earthing
(b) use of stabilizers
(c) use of fuse
(d) use of electric meter

Fill in the Blanks

1. The magnetic field of a solenoid carrying a current is similar to that of a ……….. .
2. The direction of the induced current is given by ………..
3. A generator converts ……….. into ……….. .
4. In our houses, we receive AC electric power of ……….. V with a frequency of ……….. Hz.
5. The direction of magnetic force acting on a charged particle moving in a magnetic field can be found by ……….. .
6. According to Fleming’s left hand rule, if the first finger points in the direction of ……….., the second finger
in the direction of ……….., then the thumb will point in the direction of ……….. .