State the differences between magnetic field and magnetic field line.

Magnetic Field Magnetic field line The magnetic field is the region surrounding a magnet, in which the force of the magnet can be detected. Magnetic field lines or lines of force are the imaginary lines used to visualise magnetic field. The magnetic field is a quantity that has both direction and magnitude. It is a vector quantity. The magnetic field lines always begin from the N-pole of a magnet and end on the S-pole of the magnet. The magnetic field is created by an electric current or magnetic dipole and the field imparts magnetic forces on other particles that are in it. The magnetic field lines are the path along which an isolated unit north pole would move along in the field.

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EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Magnetic Effects of Electric Current>meghalaya-2019>Q 9

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10th Meghalaya Board

IMPORTANT

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What is a solenoid? Can you determine the North and South poles of a current-carrying solenoid with the help of a bar magnet? Explain.

Important Questions on Magnetic Effects of Electric Current

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10th Meghalaya Board

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SCIENCE>Chapter 13 - Magnetic Effects of Electric Current>meghalaya-2019>Q 10

If a single coil of large number of turns is used in a motor, it is found that the motion of the coil is not smooth but jerky.
Why is it so? How can this jerky motion be converted into a smooth circular motion?