Filament of a torch bulb is

Battery is a combination of

Metal disc of electric cell is

In the following arrangement shown in figure, the bulb will not glow if the ends A and B are connected with

Which of these appliances in your home is not run by electricity?

SI unit of current is:

_________is an electric device which can easily close or open an electric circuit.

A material that allows the electricity to pass through it is :

Which of the following is not a component of a circuit?

What is used in making or breaking a circuit?

Artificial magnets are made in different shapes such as ________________and______________

Central cap of the cell acts as _________ terminal.

Container of the cell acts as _______ terminal.

The device used to break an electric circuit is called________.

Be _______ while handling electric appliances

A fused bulb does not glow. Why? 

Paheli wanted to glow a torch bulb using a cell. She could not get connecting wires instead she got two strips of aluminium foil. Will she succeed? Explain how.

Mention two advantages of a dry cell.

What are insulators? Give one example.

Name some of the devices in which electric cells are used.

Name two insulators and two conductors.

How can you explain that the human body is a good conductor of electricity?

Why is it compulsory to keep a fire extinguisher near the meter room of housing societies?

There was electricity problem in Paheli's house. Her father decided to check the mains to find the problem. As he moved toward mains, Paheli ran and got him a pair of rubber gloves and rubber slippers.
(i) Why did Paheli get her father rubber gloves and rubber slippers?
(ii) Mention the values shown by Paheli.

Due to Sudden power failure in Ravi's house, he lighted three candles. He placed one of them in the drawing room, second in the kitchen for his mother and third one in his grandmother's room as she was ailing and bed-ridden.
(i) What is the importance of light in one's life?
(ii) What is the chemical transformation in a candle?
(iii) What values are exhibited by Ravi?

What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.

As we know that silver is the best conductor of electricity instead of this we use copper and aluminium. Why?

Why do bulbs have two terminals?

Pallavi is preparing a torch in her house with her friend Radhika. But even completing the circuit bulb doesn't glow Radhika adviced her to check the correct sequence of cell used.
(a) State the values reflected by Radhika here.
(b) Explain what can be the reason for not glowing the bulb.

Sita is operating an base electric wire so that its electric iron can be used safely. Her friend Vimlesh advised her not to do so without plastic gloves.
(a) Mention the values that Vimlesh shows here.
(b) A plastic glove is an insulator or conductor.

You are provided with a bulb, a cell, a switch and some connecting wires. Draw a diagram to show the connections between them to make the bulb glow.

Explain why all the light bulbs and fans go off if the main switch is turned off in your house.

What is a battery? Explain it with a figure.

What type of cells are used in calculators? What are the main advantages of using such type of cells?

How does an electric cell produce electricity?

A torch requires 3 cells. Show the arrangement of the cells with a diagram inside the torch so that the bulb glows.

Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow? Explain with the help of a circuit diagram.

Describe an electric cell with the help of a labelled diagram.

What is an electric switch? What is the purpose of using it ? Give some examples of electrical appliances where electric switches are used.

Think of six activities which use electric current Also name the devices used to perform the activity.