Consider the following statements
I. Cells connected in series produce higher voltage.
II. Cells damaged can be easily found and replaced in series circuit.
III. If any cell gets damaged in parallel circuit, it will affect the whole connection.
IV. Cells connected in parallel last longer.
Which of the above statements are true?
1
All the above.
2
All are incorrect.
3
Only iii & iv
4
Only i, ii & iv.