How many cells of 1.5 V will be needed to make a 9 V battery? Options: A . &nbsp2 B . &nbsp4 C . &nbsp6 D . &nbsp8

How many cells of 1.5 V will be needed to make a 9 V battery?

Question

How many cells of 1.5 V will be needed to make a 9 V battery?

Options:

A . 2

B . 4

C . 6

D . 8

Answer: Option C
:
C
Let the number of required cells be N. The total voltage is equal to 9 volt.
Therefore,

1.5 \times N = 9

N = \frac{9}{1.5} = 6

Hence6 cells will be required.

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