\text { - Three phase, } 480 \mathrm{~V} 60 \mathrm{~Hz}, 12 \text { pole induction motor } \text { - } R_{1}=0.1 \Omega, R_{2}^{\prime}=0.5 \Omega, X_{1}+X_{2}^{\prime}=X_{e q}=5 \Omega ●Full load speed is 560 RPM a. Developed torque b. Keeping the torque the same, change the voltage to reduce the speed to 530 RPM. Find the new voltage