1)Fill in the blanks:
1. Many_____people of our country live in forest.
2. Forests consist of different layers of ____
3. Electric bulb's filament is made of_____
4. Several food chains of a region interconnect to form a______
5. Electric fuse works on the principle of the______
6. ISI stands for ____
7. Who discovered the magnetic effect of electric current____
8. Current carrying wire behaves like a ___
2)True or false
1) flow of electrons is called resistance ____
2) heating effect of electric current is used in bulb ___
3) electric bell works in the heating effect of electric current ___
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Answers
Answer:
Explanation:
Many of the people of our country live in forest
A forest is made up of many layers. The main layers of all forest types are the forest floor, the understory and the canopy. The emergent layer exists in tropical rainforests. Each layer has a different set of plants and animals depending upon the availability of sunlight, moisture and food.
The Correct Answer is Tungsten. Tungsten metal is used for making the filament of electric bulbs.
Several food chains of a region interconnect to form a food web
An electric fuse is based on the principle of heating effect of electric current. It is made up of thin metallic wire of non-combustible material. A fuse is always connected between the ends of the terminal in a series connection with the circuit.
We have all heard of products proudly proclaiming their ISI mark. ISI stands for the Indian Standards Institute, a body set up when India gained Independence to create standards needed for orderly commercial growth and maintaining quality in industrial production.
The magnetic effect of electric current was discovered by Hans Christian Oersted in the year 1982. On 21 April 1820, Oersted published his discovery that a compass needle was deflected from magnetic north by a nearby electric current, confirming a direct relationship between electricity and magnetism.
magnet
When an electric current flows through a wire, it behaves like a magnet. „ A current carrying coil of an insulated wire wrapped around a piece of iron is called an electromagnet.
Electricity is the flow of electrons through a conductor, usually in the form of a wire, this flow is called an electric current.
Answer:
1. Tribal
2. water, sunlight and air circulation
3. tungsten
4. food web
5. heating effect on electric current
6. Indian Standard Institutions
7. Hens Christian Oersted
8. magnet
2 1. false
2. true
3. false
Explanation:
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