Jammu and Kashmir Board Solutions for Chapter: Electric Current and Circuits, Exercise 8: Think and Answer

Author:Jammu and Kashmir Board

Jammu and Kashmir Board Science Solutions for Exercise - Jammu and Kashmir Board Solutions for Chapter: Electric Current and Circuits, Exercise 8: Think and Answer

Attempt the practice questions on Chapter 14: Electric Current and Circuits, Exercise 8: Think and Answer with hints and solutions to strengthen your understanding. SCIENCE A TEXTBOOK FOR CLASS 7 solutions are prepared by Experienced Embibe Experts.

Questions from Jammu and Kashmir Board Solutions for Chapter: Electric Current and Circuits, Exercise 8: Think and Answer with Hints & Solutions

MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>Think and Answer>Q 1

We have seen that the heating effect of electric current has been put to use in many appliances like toasters, heaters, etc. This kind of heating can also be a waste in many places. Can you think of one example?

MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>Think and Answer>Q 2

You know that the strength of an electromagnet depends on the amount of current flowing in the coil. Do you think the magnetic strength will increase/decrease if the amount of current in the coil is increased?

MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
SCIENCE A TEXTBOOK FOR CLASS 7>Chapter 14 - Electric Current and Circuits>Think and Answer>Q 3

Do you think all electrical fuses should have the same maximum current?