 (a) armature current at rated load (in Amperes)=   
 
    50.  
 
 (b) Efficiency at full load (%)=   
 
    67.818182  
 
 (c) no. of turns per pole=   
 
    3.  
 
 (d) new speed of motor (in rpm)=   
 
    2711.  
 
 driving torque (in Newton-meter)=   
 
    11.939102  