English

Select the correct option: A bar magnet is rubbed on a bar of steel along its length 20 times. The bar of steel gets magnetised due to the process of:

Advertisements
Advertisements

Question

Select the correct option:

A bar magnet is rubbed on a bar of steel along its length 20 times. The bar of steel gets magnetised due to the process of:

Options

  • induction

  • conduction 

  • friction

  • none of the these

MCQ
Advertisements

Solution

conduction

shaalaa.com
  Is there an error in this question or solution?
Chapter 11: Electricity and Magnetism – 2 - Exercise (A) Objective Questions

APPEARS IN

Goyal Brothers Prakashan A New Approach to ICSE Physics Part 1 [English] Class 9
Chapter 11 Electricity and Magnetism – 2
Exercise (A) Objective Questions | Q 1

RELATED QUESTIONS

Explain why, two magnetic field lines of not intersect each other.


A strong bar magnet is placed vertically above a horizontal wooden board. The magnetic lines of force will be:

(a) only in horizontal plane around the magnet
(b) only in vertical plane around the magnet
(c) in horizontal as well as in vertical planes around the magnet
(d) in all the planes around the magnet   


Which of the following statements is incorrect regarding magnetic field lines?
(a) The direction of magnetic field at a point is taken to be the direction in which the north pole a magnetic compass needle points.
(b) Magnetic field lines are closed curves.
(c) If magnetic field lines are parallel and equidistant, they represent zero field strength.
(d) Relative strength of magnetic field is shown by the degree of closeness of the field lines.


Copy the figure below which shows a plotting compass and a magnet. Label the N pole of the magnet and draw field line on which the compass lines 

  


What is an artificial magnet? State two reasons why do we need artificial magnets .


What do you understand by the term magnetic field lines?


Figure. shows a bar magnet placed on the table top with its north pole pointing towards south. The arrow shows the north-south direction. There are no other magnets or magnetic materials nearby.

Indicate by crosses, the likely positions of the neutral points.


Draw magnetic field lines produced around a current-carrying straight conductor passing through cardboard. Name, state and apply the rule to mark the direction of these field lines.


How do you account for the following fact?

Soft iron keepers help to prevent the magnets from losing their magnetic properties.


Repulsion is a surer test of magnetic condition of a body than attraction. Explain.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×