By signing in you confirm you are 18 or older, or have your parent’s or guardian’s consent.

NDA 1 2025 GAT, question 148

Topic: Physics

Q148

If three resistors of 1 Ohm each connect in parallel to each other the resultant resistance is

  1. (a) 1 Ohm
  2. (b) 13\frac{1}{3} OhmCorrect answer
  3. (c) 3 Ohm
  4. (d) 9 Ohm

Solution.

Answer: (b) 13\frac{1}{3} Ohm

  1. For parallel resistors, 1/Req=1/1+1/1+1/1=31/R_{eq} = 1/1 + 1/1 + 1/1 = 3.
  2. Thus Req=13 ΩR_{eq} = \frac{1}{3}\,\Omega.