Question

I. CHOOSE THE BEST ANSWER:

1.The unbroken path through which electric current passes is called

a. closed circuit b. open circuit c. electric fuse

2.A Filament of electric bulb is made up

a. Tungsten b.Nichrome c.Lead

3. An electric heater works on the principle of the --------effect of electric current

a. chemical b. heating c. melting

4. In which of the following is a wire with a low melting point used

a. Electric bell b. Electric fuse c. Electromagnet

5.Which of these does not use an electromagnet for its working

a. Electric bulb b. Electric bell c. Television​

Answer 1

Answer:

1. b)open circuit

2. a) tungsten

3. b) heating

4. b) electric fuse

5. c) television

Answer 2

Electric fuse works on the heating effect of electric current. when electricity passes through the wires it creates heat. fuse is made up of a low melting point.