Question

Choose the most appropriate answer:
1. Which of the following is the most essential for an electric circuit to work?
(a) A switch
(b) An electric current
(c) A switch board
(d) None of the above

2. The connecting wires used in an electric cicuit are usually made of
(a) gold
(b) silver
(c) copper
(d) plastic

3. Pure or distilled water is a/an
(a) conductor
(b) insulator
(c) partial conductor
(d) none of the above

4. Water supplied in households and normal water is a/an
(a) conductor
(b) insulator
(c) partial conductor
(d) none of the above​

Answer 1

Explanation:

(b) electric current =1

(c) copper = 2

(b) insulator = 3

(a) conductor = 4