Question

calculate the number of fins (n) on a heat sink when the spacing between the fins (s) is 0.05 m and the width of the heat sink (w) is 0.9 m. assume the thickness of the fins to be negligible.

Answer 1

To calculate the number of fins on a heat sink with a width of 0.9 m and a fin spacing of 0.05 m, divide the width by the spacing and subtract one. Following this method, it results in 17 fins.

Step-by-step explanation:

To calculate the number of fins (n) on a heat sink given the spacing between the fins (s) is 0.05 m and the width of the heat sink (w) is 0.9 m, assuming the thickness of the fins is negligible, we can use a simple mathematical approach:

1. To begin, we need to find out how many spaces are created by the fins across the width of the heat sink.
2. The total number of spacings is equal to the width of the heat sink (w) divided by the spacing between the fins (s).
3. Once we calculate the number of spacings, we subtract one to get the number of fins, as the ends of the heat sink do not constitute a spacing.
4. Here's the calculation: n = (w / s) - 1. Plugging the values in, we get n = (0.9 m / 0.05 m) - 1 = 18 - 1 = 17.
5. Therefore, the heat sink has 17 fins.