Find the time constant for the given RC circuits in correct order (in μ s). R1=1 Ω, R2=2 Ω, C1=4 μ F,C2=2 μ F .

Question

Find the time constant for the given RC circuits in correct order (in μ s). R1=1 Ω, R2=2 Ω, C1=4 μ F,C2=2 μ F .  (A) 18, 4, 8/9 (B) 18,8/9,4 (C) 4, 18, 8/9 (D) 4, 8/9,18

Tardigrade Admin · Accepted Answer

τ =CR τ1 =(C1+C2)(R1+R2)=18 μ s τ2 = ( (C1C2/C1+C2) ) ( (R1R2/R1+R2) )= (8/6) × (2/3)= (8/9) μ s τ3 =(C1+C2) ( (R1R2/R1+R2) )=(6) ( (2/3) )=4 μ s

Q. Find the time constant for the given RC circuits in correct order (in μs). R1​=1Ω,R2​=2Ω,C1​=4μF,C2​=2μF.

18, 4, 8/9

18,8/9,4

4, 18, 8/9

4, 8/9,18

τ=CR τ1​=(C1​+C2​)(R1​+R2​)=18μs τ2​=(C1​+C2​C1​C2​​)(R1​+R2​R1​R2​​)=68​×32​=98​μs τ3​=(C1​+C2​)(R1​+R2​R1​R2​​)=(6)(32​)=4μs

Q. Find the time constant for the given RC circuits in correct order (in $μ s) .$
$R_{1} = 1Ω, R_{2} = 2Ω, C_{1} = 4 μ F, C_{2} = 2 μ F .$