Question 1 :
Heating effect of electric current is the effect of current responsible for the glow of the bulb in an electric circuit.

Question 3 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1d059f59b460d7261f2d3.PNG' /> From the above image, we can see that Boojho and Paheli performed experiments taking similar bulbs and cells but two different solutions A and B. They found that the bulb in the setup A glows more brightly as compared to that of the setup B. You would conclude that

Question 4 :
A coating of zinc is provided to protect iron from corrosion and rust.

Question 5 :
Which of the following metals is used in electroplating to make objects appear shining?

Question 6 :
Electroplating of ______________ is done on objects like water taps and cycle bell to give them a shiny appearance.

Question 7 :
When electric current is passed through a conducting solution, there is a change of colour of the solution. This indicates

Question 8 :
Small amount of a mineral salt present naturally in water makes it a ____________ of electricity.

Question 9 :
One of the most common applications of chemical effect of electric current is __________.