Electric current is flow of charges. Fuse and electric bulb works on the principle of heating effect of current. Glowing effect and melting of a wire, both these phenomena take place due to attainment of high temperature and hence, they are examples of heating effect of current. While electric bell works on the principle of magnetic effect of current. When the electric current flows through the circuit, the striker gets attracted by the electromagnet and hits the gong producing a sound.