Hi All
Attached is a diagram of a full wave power supply with a centre tap and 2 diodes.
The question asks which waveform is the output waveform measured at point A with respect to point B.
The answer is (b) as with the diodes connected as shown, point A will be negative with respect to point B.
Hmmmm. Try as I might I can't work out why. The way I see it is that electron flow (negative) will start at the centre tap and travel to point B first, then through the resistor to point A then back home through the top diode.
So shouldn't A be positive with respect to point B?
Really confused here...
Attached is a diagram of a full wave power supply with a centre tap and 2 diodes.
The question asks which waveform is the output waveform measured at point A with respect to point B.
The answer is (b) as with the diodes connected as shown, point A will be negative with respect to point B.
Hmmmm. Try as I might I can't work out why. The way I see it is that electron flow (negative) will start at the centre tap and travel to point B first, then through the resistor to point A then back home through the top diode.
So shouldn't A be positive with respect to point B?
Really confused here...
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