Why in series connection current remains …

       Current and Resistance in series connection of resistors

• Series connection is a combnation of resistors connected end to end.
• It forms a linear connection arrangement of all the resistors connected in series.
• So the amount of current flowing through each resistor is equal to the amount of current flowing through the entire circuit.
• Thus, in series connection the current remains same across the resistors.
• The equivalent resistance of such resistors is given by the sum of resistances of all the resistors connected in series.
• Mathematically, 
• This explains that the resistance of the entire circuit of resistors connected in series will be more than the resistance of the individual resistors.
• Resistance is the actual resistance to the flow of current through the circuit.
• Therefore as the equivalent resistance of the resistors connected in series gets added up, the flow of current in a series circuit decreases due to this added resistance.