Which effect of current is utilised in an electric light bulb?

Which effect of electric current is utilised : in an electric bulb ?

Which effect of electric current is utilised : in an electric iron ?

Explain how the heating effect of electric current is utilized in an electric bulb (called incandescent lamp) to produce light.

Which effect of current can be utilised in detecting a current-carrying wire concealed in a wall ?

Explain the application of heating effect of electric current in an electric bulb.

i] Define electric potential difference. How is ammeter connected in an electric circuit ? ii] Explain the application of heating effect of electric current E in an electric bulb and the fuse used in an electric circuit.