Question

Time constant of the circuit shown in figure is :

• A. 2 RC
• B. 3 RC
• C. $\frac{2RC}{3}$
• D. none

Answer 1

The correct option is D none

Solution

REF.Image

We know that,

$T=R_T{C}_T$

calculating $R_T$

So, $R_T=R$

$C_T$ is simply C. so,

$T=R_T{C}_T=RC$

Option - D is correct.