Question

A series stack of alkaline cells produces 6 kW of power. If each cell contributes 14.5 W, how many cells are in the stack? (Round to the nearest whole number.)
A) 2
B) 21
C) 87
D) 414

Answer 1

the answer to this question would be the last option - D) 414

Answer 2

answer:- The correct answer is D)414.

Solution:- From given information, one cell contributes 14.5 W. We need to calculate the number of cells that would produce 6 kW of power.

We know that, 1 kW = 1000 W

Convert Given kW to W and divide by the power of one cell to calculate the number of cells required. The set is made as:

$6kW(\frac{1000W}{1kW})(\frac{1Cell}{14.5W})$

= 414 cells

So, 414 cells need to be there in the stack to produce 6kW of power.