Batteries are made by connecting cells in series and parallel. Suppose a battery

Question

Batteries are made by connecting cells in series and parallel. Suppose a battery is to be made of cells of 1.3V , and 5*10^-3A. What is the voltage of a battery made with 30 cells in series? What is the total current produced by 8 cells in parallel?

To make a battery of 43.5V , and 1.4A , how many cells must be put in each row and how many rows must be in parallel?

Put in the number that must be in each row followed by a comma and then put in the number of rows that must be in parallel. Do not round to the next cell.

Explanation / Answer

a) Voltage = 30*1.3

=39 V

current = 5*10^-3*8

= 4*10^-2 A

b) let the number of batteries in series be x.so,

x=43.5/1.3

or x= 33.46

let the number of batteries in parallel be y.so,

y*5*10^-3=1.4
or y=280

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