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27 Σεπ 2019 · Free download NCERT Solutions for Class 10 Science Chapter 3 Metals and Non-Metals PDF in Hindi Medium as well as in English Medium for CBSE, Uttarakhand, Bihar, MP Board, Gujarat Board, and UP Board students, who are using NCERT Books based on updated CBSE Syllabus for the session 2019-20.
the metal wire melt? The above activity shows that metals are good conductors of heat and have high melting points. The best conductors of heat are silver and copper . Lead and mer cury are comparatively poor conductors of heat. Do metals also conduct electricity? Let us find out. Figure 3.1 Metals are good conductors of heat. 2024-25
NCERT Solutions for Chapter 3 - Metals and Non-metals Class 10 Science FREE PDF Download. NCERT Class 10th Science Chapter 3 Question Answer provides comprehensive and detailed answers to the exercises given in the NCERT textbook. This chapter delves into the properties, uses, and reactions of metals and non-metals, crucial for a foundational ...
(a) For filament of electric lamp we require a strong metal with high melting point. Tungsten is used exclusively for filament of electric lamps because its melting point is extremely high. (b) Conductors of electric heating devices are made of an alloy rather than a pure metal due to high resistivity than pure metal and high melting point to ...
Why are coils of electric toasters and electric irons made of an alloy rather than a pure metal? Solution: The melting point of an alloy is much higher than a pure metal because of its high resistivity.
Use the Table above to answer the following questions about metals A, B, C and D. (i) Which is the most reactive metal? (ii) What would you observe if B is added to a solution of Copper (II) sulphate?
How does it flow in an electric circuit? What are the factors that control or regulate the current through an electric circuit? In this Chapter, we shall attempt to answer such questions. We shall also discuss the heating effect of electric current and its applications. 12.1 ELECTRIC CURRENT AND CIRCUIT.
