(a)Value of external resistance when the load torque is independent of speed (in ohms)=    
 
    0.975  
 
 (b)Value of external resistance when the load torque is proportional to speed (in ohms)=    
 
    1.0833333  
 
 (a)Value of external resistance when the load torque is independent of speed (in ohms)=    
 
    1.2037037