Question: 4 . A PMDC motor is supplied with 3 6 V and 3 A and is operating at 1 5 0 0 rpm . The

4. A PMDC motor is supplied with 36 V and 3 A and is operating at 1500 rpm . The motor has \(\%72\) efficiency under these conditions. Assume rotational losses are 6 W .
a) Find the machine constant Kv.(7 points)
b) Armature winding resistance \(\mathrm{R}_{\mathrm{A}}\).(7 points)
c) Induced voltage at 1500 rpm .(6 points)
4 . A PMDC motor is supplied with 3 6 V and 3 A

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