Question

a. Tungsten metal is used to make a
solenoid type coil in an electric bulb.​

Answer 1

Answer:

This is because tungsten has high resistance of 3380°c and hence used in solenoid...

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Answer 2

Answer:

Explanation:

tungsten being the densest metal in the world does not melt on the temperature created by heat energy created inside the bulb ; and converts most of the electrical energy in heat and light energy.

see,any mechanism isn't 100% efficient the efficiency is lost due to factors such as friction  and other factors.

In bulbs the 90% of electric energy is required to light the bulb and other 10% is the light we get .

tungsten reduces the power wastage but it is a pricey metal .

If any other metal such as copper would be used it would melt as melting point of copper is 1085*c where as that of tungsten is 3422*c nearly thrice of aluminium and the temperature inside the bulb is 2550*c.

so Tungsten"s durability is more than any metal.

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