Bridge Rectifier's Output Became Near-Zero Value After The Implementation of a Voltage Divider
Found out the problem on my practical circuit. CONTINUITY problem.
I've used jumpers and crocodile clips to connect from source to components. Jumper wires are fine. But this is the first time that I've found out there's also continuity problem in crocodile clips as well. After replacing and testing all the wires' continuity, the oscilloscope waveform shown is the same as the waveform shown in the simulation (picture).
Proteus Simulation of the Scaled-down Rectified Output:

Practical Oscilloscope Waveform of the Scaled-down Rectified Output: