Subject Experts Solutions for Chapter: Magnets, Exercise 5: Time to Think

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Subject Experts Science Solutions for Exercise - Subject Experts Solutions for Chapter: Magnets, Exercise 5: Time to Think

Attempt the practice questions on Chapter 13: Magnets, Exercise 5: Time to Think with hints and solutions to strengthen your understanding. Galaxy Science in Everyday Life solutions are prepared by Experienced Embibe Experts.

Questions from Subject Experts Solutions for Chapter: Magnets, Exercise 5: Time to Think with Hints & Solutions

EASY
6th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 13 - Magnets>Time to Think>Q 1

Why do magnets have their effects only on a few kinds of materials like iron, nickel, and cobalt?   

EASY
6th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 13 - Magnets>Time to Think>Q 2

When we rub a magnet on a strip of iron, it also gets magnestised. Does this magnetised strip of iron also have two poles? 

MEDIUM
6th CBSE
IMPORTANT
Galaxy Science in Everyday Life>Chapter 13 - Magnets>Time to Think>Q 3

In most devices like an electric bell, generators, motors, etc. electromagnets are used. Why? Why we can not use a permanent magnet in these devices?