EXERCISES
B K Gowel Science Solutions for EXERCISES
Simple step-by-step solutions to EXERCISES questions of Electric Current and Its Uses from S. Chand's SCIENCE For Class VII. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from EXERCISES with Hints & Solutions
Why do we not make use of copper or silver as heating coils?
Why fluorescent tube gives more light with less consumption of energy in comparison to incandescent lamp.
List magnetic uses of electricity.
List the factors on which the strength of an electromagnet depends.
Why do we make use of a 'fuse' on line?
Describe the structure and working of an electric bell.
You have two dry cells, one is dead and the other is working. How to know which one is dead and which one is a working cell?
Name two factors which can help in increasing the strength of an electromagnet.
