NDA2021General AbilityGeneral ScienceActual
Three equal resistors are connected in parallel configuration in a closed electrical circuit. Then the total resistance in the circuit becomes
Options
- Aone-third of the individual resistance.
- Btwo-third of the individual resistance.
- Cequal to the individual resistance.
- Dthree times of the individual resistance.
Correct answer
A. one-third of the individual resistance.
Step-by-step solution
When n resistor of equal value is connected in parallel then the resultant resistance is R / n and When n resistor of the same value is connected in series then the resultant resistance is n / R So, according to your question aligned & R / 3=1 & R=3 Ohm aligned Now, when they are connected in series R =3^* 3=9 Ohm