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## Homework Statement

Given the no-load test results of a DC motor connected in shunt to be:

Speed: 3000rpm

Applied voltage: 239V

Field current: 0.25A

Calculate the motor constant K_m, where K_m = K

## Homework Equations

not really sure about the equations to use

i have these:

Km = T/ SQRT(P)

Km = Kt / SQRT(Rt)

but not really sure how I can use these to help solve the problem.

## The Attempt at a Solution

I'm sure it's just a matter of finding the right formula than just plugging the values in. So if someone can give me the correct equations it would be very helpful, thank you