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#15

10-02-2011, 02:17

AdamHeard

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Re: pic: In_CIM_erator

Quote:

Originally Posted by John G

Where did the 4/9 come from. I must have missed something in my math.

Mechanical power is torque x speed.

Stepping down from 18 to 12V is a 2/3 change.

Power = 2/3Torque x 2/3 speed. Works out to the power at 12V being 4/9 that of 18V.

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