Question

1 Ratna coiled a metal wire on her pencil box and connected it to a battery. She observed that some metal pins kept near a metal pencil box were attracted to it. Why did this happen?​

Answer 1

Answer:

You might have tried the game ‘How steady is your hand?’ suggested in Chapter 12 of Class VI. If not, you may try it out now. Paheli and Boojho had also set up the game by connecting an electric circuit as suggested in Class VI. They had lots of fun trying it out with their families and friends. They enjoyed it so much that they decided to suggest it to a cousin of theirs who stayed in a different town. So, Paheli made a neat drawing showing how the various electric components were to be connected (Fig.14.1).

14_01.tif

Fig. 14.1 Setup to check how steady your hand is

Can you draw this circuit conveniently? It made Boojho wonder if therewas an easier way to represent these electric components.