LT Spice Transformer Circuit Questions
Your source has a frequency of 60 Hz and your primary inductance is 2 mH which has an impedance of 0.75 ohms at 60 Hz hence, more than 99.9 per cent of the applied voltage appears across the 100 ohm series resistor R2. Try making the primary inductance more like 2 henry if you want to model an AC power transformer. 2 mH is waaaayyyy too small and it gives the impression (although not absolutely true) that A and B voltages are identical.