Heating effect of electric current

symbol of a battery

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check the closed circuit

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filament of a bulb is usually made up of

• nickel

• chromium

• cobalt

• tungsten

filament of a bulb should have

• high melting point

• low melting point

element of an electric iron is made up of

• nickel

• chromium

• nichrome

• tungsten

(a)   is a safety device

what is the full form of MCB

name 2 appliances that works using the principle of heating effect of electric current

the mark that you see on electric appliances to show that it is safe is (a)  

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