Multiple choice general knowledge Resistance of resistors R1,R2,R3,......... in series will be? 1/(R1+R2+R3+.......) R1R2R3....../R1+R2+R3+.... R1+R2+R3+........... infinity Reveal answer Fill a bubble to check yourself C Correct answer Explanation When resistors are connected in series, their individual resistances add up directly to form the total equivalent resistance. Therefore, the formula is simply R1 + R2 + R3 + ...., whereas the reciprocal sum formula applies to parallel resistors.