Factors Affecting Rate of Flow of Charges

Q.

In which of the following circuits A, B and C given in the figure, the cell will be used up very rapidly?

1. 

2. 

3. 

Q.
Which of the following should be placed in box 'X' to make the bulb glow more brightly?

1. Bulb
2. Cell
3. Fuse
4. Switch