Question

Pick the odd-one out. Give scientific reason for your answer.
1. volt, ampere, watt, cell)
If It not a
2. Rubber, wood, iron, paper
It is a
3. Gong, clapper, galvanometer, armature
4. Electric bell, tubelight, electric fan, telephone
It i​

Answer 1

answer

1 cell because all of the other are s.i units but it is not a s.i unit

2 iron bcz it is a metal

3

4 telephone bcz it not a electric appliance like others

Answer 2

1. Cell

All the other options are SI units of terms related to current.

2. Iron

All the other options are Insulators or poor conductors of heat and electricity.

3.

4. Telephone

All the other options run on electricity.