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Find the induced torque in the motor in Problem (A 220-V 1.5-hp 50-Hz six-pole capacitor-start induction motor has the following main-winding impedances:

{ R }_{ 1 } = 1.3 \Omega { R }_{ 2 } = 1.73 \Omega

{ X }_{ M } = 105 \Omega { X }_{ 1 } = 2.01 \Omega { X }_{ 2 } = 2.01 \Omega

At a slip of 0.05, the motor’s rotational losses are 291 W. The rotational losses may be assumed constant over the normal operating range of the motor.) if it is operating at 5 percent slip and its terminal voltage is

(a) 190 V,

(b) 208 V,

(c) 230 V.

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