NEET Physics Current Electricity Questions Solved


An infinite sequence of resistance is shown in the figure. The resultant resistance between A and B will be, when R1 = 1 ohm and R2 = 2 ohm 

(1) Infinity

(2) 1 Ω

(3) 2 Ω

(4) 1.5 Ω

(3) Let the resultant resistance be R. If we add one more branch, then the resultant resistance would be the same because this is an infinite sequence.

RR2R+R2+R1=R2R+R+2=R2+2R

R2R2=0R=1 or R=2ohm

Difficulty Level:

  • 18%
  • 22%
  • 45%
  • 18%
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