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Why is an ammeter likely to be burnt out if …
AmanRaj
The resistance of an ammeter is very low. If an ammeter is connected in parallel, the resultant resistance of the circuit decreases and excessive current passes through the instrument. Hence, the ammeter is likely to be burnt out.
The resistance of an ammeter is very low. If an ammeter is connected in parallel, the resultant resistance of the circuit decreases and excessive current passes through the instrument. Hence, the ammeter is likely to be burnt out.
See lessWhat is 24-carat gold? How will you convert it into …
Anita
24-carat gold is pure gold. Pure gold is very soft and not suitable for making jewellery Therefore, to increase its hardness, it is alloyed either with copper or silver. 18-carat gold is prepared by alloying 18 parts pure gold with 6 parts of either copper or silver.
24-carat gold is pure gold. Pure gold is very soft and not suitable for making jewellery
See lessTherefore, to increase its hardness, it is alloyed either with copper or silver.
18-carat gold is prepared by alloying 18 parts pure gold with 6 parts of either copper or silver.
How can a layer of aluminium oxide on an aluminium …
AmanRaj
Aluminium develops a thin oxide layer when exposed to air. This aluminium oxide coat makes it resistant to further corrosion. The resistance can be improved further by making the oxide layer thicker. This process is called anodising. During anodising, a clean aluminium article is made the anode andRead more
Aluminium develops a thin oxide layer when exposed to air. This aluminium oxide coat makes it resistant to further corrosion. The resistance can be improved further by making the oxide layer thicker. This process is called anodising. During anodising, a clean aluminium article is made the anode and is electrolysed with dilute sulphuric acid. The oxygen gas evolved at the anode reacts with aluminium to make a thicker protective oxide layer. This oxide layer can be dyed easily to give aluminium articles an attractive finish.
See lessExplain why, the galvanised iron article is protected against rusting …
AmanRaj
The galvanised iron article is protected against rusting even if the zinc layer is broken because zinc is more easily oxidised than iron. So when zinc layer on the surface of galvanised iron article is broken, then zinc continues to corrode but iron article does not corrode or rust.
The galvanised iron article is protected against rusting even if the zinc layer is broken because zinc is more easily oxidised than iron. So when zinc layer on the surface of galvanised iron article is broken, then zinc continues to corrode but iron article does not corrode or rust.
See lessWhat is importance of trade barrier for the government ?
Manisha Soni
Government can use trade barriers to increase or decrease foreign trade and to decide what kinds of goods and how much of each, should come into the country.
Government can use trade barriers to increase or decrease foreign trade and to decide what kinds of goods and how much of each, should come into the country.
See lessWhat are trade barriers ? Give one example.
Anjali
Any kind of restrictions which are imposed by the government of a country to check free flow of goods and services are known as trade barriers. For example, to check the free flow of Chinese toys in the Indian market Indian government can impose tax on imports.
Any kind of restrictions which are imposed by the government of a country to check free flow of goods and services are known as trade barriers. For example, to check the free flow of Chinese toys in the Indian market Indian government can impose tax on imports.
See lessWhat is liberalization ?
Kartik
Removing unwanted barriers or restrictions set by the government from trade and industry is known as liberalization.
Removing unwanted barriers or restrictions set by the government from trade and industry is
See lessknown as liberalization.
What is globalization ?
Anjali
"Globalization is the process of integration or interconnection between countries." Globalization allows free flow of trade, capital and human resource across borders.
“Globalization is the process of integration or interconnection between countries.” Globalization allows free flow of trade, capital and human resource across borders.
See lessWhat are Multinational Corporations ? Explain with the help of …
Kartik
'A Multinational Corporation or a MNC is a company that owns or controls production in more than one country.' For example, Pepsi, Samsung, Onida, Glaxo, Ponds, LG, etc. The activities of MNCs are spread over many countries. Their parent corporation is located in one country and subsidiaries are scaRead more
‘A Multinational Corporation or a MNC is a company that owns or controls production in more than one country.’ For example, Pepsi, Samsung, Onida, Glaxo, Ponds, LG, etc.
The activities of MNCs are spread over many countries. Their parent corporation is located in one country and subsidiaries are scattered in many countries in the world. For example, ITT, a very large American MNC designs its products in research centres in the United States, and then the components are manufactured in China. These components are then shipped to Mexico and Eastern European countries where these are assembled and the finished products are sold all over the world. The company’s customer care is carried out through call centres located in India.
See lessWhat is currency ? Explain any three features of modern …
Anjali
A currency is a unit of exchange, facilitating the transfer of goods and / or services. (i) It is authorized by the government of the country. (ii) Its demand and supply can be controlled by the Central Bank of the country. (iii) In India, the law legalize the use of rupee as a medium of payment thaRead more
A currency is a unit of exchange, facilitating the transfer of goods and / or services.
(i) It is authorized by the government of the country.
(ii) Its demand and supply can be controlled by the Central Bank of the country.
(iii) In India, the law legalize the use of rupee as a medium of payment that cannot be refused in settling transactions in India. No individual can legally refuse a payment made in rupees.
See less