Answer:
We will need about Six (6) 1.54 Volts cells to make up the 9 Volts battery
Explanation:
A battery is simply the combination of two or more simple cells.
To achieve a higher voltage batteries, the non alkaline cells have to be connected in series.
hence we have
One cell = 1.54 volts
Two cells = 1.54 + 1.54 = 3.08 volts
Three cells = 1.54 + 1.54 +1.54 = 4.62 Volts
Four cells = 1.54 + 1.54 +1.54 + 1.54 = 6.16 Volts
Five cells = 1.54 + 1.54 +1.54 + 1.54 +1.54 = 7.7 Volts
Six cells = 1.54 + 1.54 +1.54 + 1.54 +1.54 + 1.54= 9.24 Volts
Hence would will need a total of 6 cells to make 9 volts
Answer:
6 cells are necessary.
Explanation:
a) The total emf when the cells are connected in series is equal to:
Vt = n*V
Where
n = number of cells = ?
V = emf of a single cell = 1.54 V
Replacing and clearing n:
n = Vt/V = 9/1.54 = 5.84 = 6
