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Tungsten metal is used to make a solenoi...

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

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(i) Electric bulb works on the principle of heating effect electric of current.
(ii.) The solenoid type coil of bulb has high resistivity and very high melting point.
(iii.) When current is passed through the bulb, solenoid type coil of bulb gets heated to high temperature (upto `3400^(@)C`) and starts glowing. Hence, tungsten metal is used to make a solenoid type coil in an electric bulb.
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