Answer / Hariom Mishra

The maximum number of switches that can be connected in series in an LV (Low Voltage) distribution system depends on factors such as the rating of the switches, cable length, voltage drop limits, and local regulations. It's essential to consult the relevant standards and guidelines for specific information related to your situation.

in trains i have seen the terminal which is connected at the top of the train is positive .where is negative ? track? i dont think so

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