sequential (34) voltage loading

 https://kamchihau.blogspot.com/2022/11/httpskamchihau.htm

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Ref: https://wodewangzhishime.blogspot.com/2022/10/httpswodewangzhishime.html

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Me: Circuit B of the upper picture isn't loaded. Therefore, resistance of circuit A is high. 

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 John:But, circuit B of the lower picture is loaded with a rectifier diodes. . Consequently, the resistance of circuit A is low. 

 

 if (circuit B = load) 

{ 

resistance of circuit A = low; 

 } 

else if (circuit B = unload) 

{ 

resistance of circuit A = high; 

}