60. Two charged spheres of radii 10cm and 15cm are connected by a thin wire. No current will flow if they have-
                
             
         
        
                                                                        
                    
                    
                                                                                
                    
                    
                                                                                
                            
                                
                            
                            
                                
                            
                            
                                
                            
                             the same field on their surface
                         
                    
                    
                                                                                
                    
                    
                                                         
                    
                            
                    ব্যাখ্যা: ব্যাখ্যাঃ The current flows from higher potential to lower pontential. And if the potential difference is zero, then no current flows through the wire.