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Which of the following is the correct way to express a cost calculation formula for PCB layers?

easy🧠 Conceptual Q3 of 15
PCB Design - Multi-Layer PCB Design

Which of the following is the correct way to express a cost calculation formula for PCB layers?

ATotal Cost = Number of Layers + Cost per Layer
BTotal Cost = Cost per Layer - Number of Layers
CTotal Cost = Number of Layers / Cost per Layer
DTotal Cost = Number of Layers * Cost per Layer
Step-by-Step Solution
Solution:

  1. Step 1: Understand multiplication in cost calculation

    Cost depends on how many layers times the cost for each layer.

  2. Step 2: Check formula correctness

    Multiplying number of layers by cost per layer gives total cost.

  3. Final Answer:

    Total Cost = Number of Layers * Cost per Layer -> Option D

  4. Quick Check:

    Cost formula = Multiplication of layers and cost [OK]
Quick Trick: Multiply layers by cost per layer for total cost [OK]
Common Mistakes:
MISTAKES
  • Adding instead of multiplying
  • Dividing cost by layers
  • Subtracting layers from cost

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