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I found attached schematics image which has red cycle that has bulk capacitor series with 1 ohm resistor . Can I know the reason series resistor hare as well as the capacitor does not mention the polarities
We are using capacitor with series resistors in some cases to increase the ESR intentionally, e.g. with a ceramic capacitor as bypass capacitor for voltage regulators that require the ESR for stability. Also to reduce the Q of LC low pass filters. In this place, the series resistor doesn't seem to make sense.
I also believe that this may be used protect from surge current because at the beginning of the capacitor consume high current and result is low voltage at the output, then regulator try to increase output violate by reference with feedback