output power when input current is 20 Amp(in watts)=   
 
    7929.6  
 
 efficiency of the shunt motor when input current is 20 Amp(in %)=   
 
    79.296  
 
 output power when input current is 100 Amp(in watts)=   
 
    46041.6  
 
 efficiency of the shunt motor when input current is 100 Amp(in %)=   
 
    92.0832  