resistance of a system of resistors
RESISTANCE OF A SYSTEM OF RESISTORS THERE ARE MAINLY TWO METHODS OF JOINING THE RESISTORS OR COMBINATION OF RESISTORS. ONE IS SERIES COMBINATION AND OTHERS IS PARALLEL COMBINATION. RESISTORS IN SERIES :-- IN A ELECTRIC CIRCUIT , RESISTORS HAVING RESISTANCE R1,R2,R3 ….. Rn RESPECTIVELY ARE CONNECTED TO EACH OTHER END TOE END POINTS. THEN THE RESISTORS ARE SAID TO BE CONNECTED IN SERIES. HERE THREE RESISTORS R1 ,R2 , R3 ARE CONNECTED TO ENDS X AND Y OF THE SERIES COMBINATIONS. IN THE RESISTORS IN SERIES OR COMBINATION OF SERIES , THE VALUE OF THE CURRENT IS THE SAME AND ITS POSITION IS INDEPENDENT IN THE ENTIRE ELECTRIC CIRCUIT. IT MEANS TO SAY THAT THE CURRENT IN EVERY PART OF THE CIRCUIT WILL BE SAME IN SERIES COMBINATION AND SAME CURRENT FLOWS THROUGH EACH AND EVERY RESISTANCE. HERE, THE POTENTIAL DIFFERENCE (PD) OF EACH RESISTORS IS VARY. SO POTENTIAL DIFFERENCE ACROSS COMBINATION OF RESISTORS IN SERIES IS EQ