Andhra Pradesh Board Solutions for Chapter: Basic Electric Circuits, Exercise 9: Improve Your Learning

Classify the following into conductors and insulators.

Water, plastic pen, pencil lead, dry cotton cloth, wet cotton cloth, dry wood, wet wood.

What will happen if the cells in a torch are arranged as shown in the following figure? Why?

Niharika observed an electrician repairing a street light wearing gloves on his hand. She asked him some questions. What would be those questions?

A circuit is connected with a cell, bulb and a switch, but the bulb is not glowing. Write all possible reasons for this.

How do you test materials given to you, to know whether they are conductors or insulators?

Draw a circuit diagram showing a cell, switch and a bulb.

If you put the switch on, a light will glow, a fan will rotate, an iron box heats up, etc. All these different functions are performed by electricity. How do you feel about the comforts given by this great invention to the human beings? 

List the daily activities in which we use electricity.