Question: A 250-V, 4-pole, wave-wound d.c. series motor has 782 conductors on itsarmature. It has armature and series field resistance of 0.75 ohm. The motor takesa current of 40 A. Estimate its speed and gross torque developed if it has a flux per pole of 25 mWb Answer: Step 1 Mechanical Engineering homework question answer, step 1, image 1 Mechanical Engineering homework question answer, step 1, image 2 Step 2 Mechanical Engineering homework question answer, step 2, image 1 Step 3 Mechanical Engineering homework question answer, step 3, image 1

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• Generally, lookup table is used to read data and as a result, we almost write to a lookup table and this is the mistake we do. So in order to help to catch the unintended writes to lookup table, one should always declare array as constant.The const(used for constant array) keyword is to store the table in the flash memory, not in the RAM. This is because RAM is scarce in microcontrollers. This is the advantage that we have using constant array.
• In MCU programming, we have less space when compared to other programmings and for using dynamic lookup table, we need much space. So we often use Fixed length look up table for MCU programming.

Hope this helps.