Answer:1.81
(a) Explanation:the turn ratio= input voltage÷output voltage. 
400÷220=1.81. 
Don't know how to solve b part... 
 
        
             
        
        
        
“Inner Planets” – Mercury, Venus, Earth, and Mars – which are so named because they orbit closest to the Sun. ... For starters, the inner planets are rocky and terrestrial, composed mostly of silicates and metals, whereas the outer planets are gas giants.
 
        
             
        
        
        
Would love to help you but there are no options for me to choose from
        
             
        
        
        
1) The heat added to system
2) 800J
3) I'm not sure but I think it would be 300J.. Not certain tho
        
             
        
        
        
The magnitude of the E-field decreases as the square of the distance from the charge, just like gravity.
Location ' x ' is  √(2² + 3²) = √13 m  from the charge.
Location ' y ' is √ [ (-3)² + (-2)² ] = √13 m from the charge.
The magnitude of the E-field is the same at both locations.
The direction is also the same at both locations ... it points toward the origin.