GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An alloy used in making heating elements for electric heating devices is-
A
Alloysteel
B
German Silver
C
Nichrome
D
Solder
Explanation: 

Detailed explanation-1: -An alloy used in making heating elements for electric heating devices is nichrome. It is an alloy of nickel, chromium, ( and sometimes iron and other elements or substances). It is used as resistance wire.

Detailed explanation-2: -Nichrome is used for making heating element of electrical appliances. Because nichrome does not oxidize and burn easily at high temperature i.e.it has higher melting and boiling point than metals. Thus it does not melt even when a large amount of heat is produced due to passage of current.

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