Five equal resistances of 10Ω are connected between A and B as shown in figure. The resultant resistance is
  • a)
    10Ω
  • b)
  • c)
    15Ω
  • d)
Correct answer is option 'B'. Can you explain this answer?

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Answers

Ciel Knowledge
Feb 08, 2022
According to the given circuit 10Ω and 10Ω resistances are connected in series.
∴ R′ = 10 + 10 = 20Ω
Again 10Ω and 10Ω resistances are connected in series
∴ R′′ = 10 + 10 = 20Ω
R′, R′′ and 10Ω all connected in parallel than
∴ 


Req = 5Ω

According to the given circuit 10Ω and 10Ω resistances are connected in series.∴ R′ = 10 + 10 = 20ΩAgain 10Ω and 10Ω resistances are connected in series∴ R′′ = 10 + 10 = 20ΩR′, R′′ and 10Ω all connected in parallel than∴=Req= 5Ω
According to the given circuit 10Ω and 10Ω resistances are connected in series.∴ R′ = 10 + 10 = 20ΩAgain 10Ω and 10Ω resistances are connected in series∴ R′′ = 10 + 10 = 20ΩR′, R′′ and 10Ω all connected in parallel than∴=Req= 5Ω