Electronics and Communication Engineering - Networks Analysis and Synthesis - Discussion

3. 

An RLC series circuit is underdamped. To make it overdamped, the value of R

[A]. has to be increased
[B]. has to be decreased
[C]. has to be increased to infinity
[D]. has to be reduced to zero

Answer: Option A

Explanation:

For overdamping R is more.


Chandru said: (Jun 11, 2014)  
What is mean by over&underdamped circuits ?

Samata said: (Sep 22, 2014)  
Circuit which allows oscillation they are called as underdamped circuit and which won't they are overdamped.

Shantha said: (May 29, 2015)  
What about LC?

Tarun G said: (Jul 11, 2015)  
LC is undamped because the value of resistance is zero. And for any circuit when R=0; damping coefficient (for series RLC=R/2L) is also zero.

Nitesh Jain said: (Aug 26, 2015)  
Damping ratio (zeta) = R/2(C/L)^1/2.

Divesh Jain said: (Sep 27, 2015)  
What is mean of damping ratio?

Divesh Jain said: (Sep 29, 2015)  
What is the mean of damping ratio can anyone explain this?

Sandeep Kumar said: (Jul 3, 2016)  
It is a measurement that measures how oscillations decay in a system after a disturbance.

Sonia Gandhi said: (Feb 7, 2017)  
No. It is not possible. It has to be decreased.

Ramana said: (Jun 8, 2017)  
What is the difference between underdamped, overdamped, critical damped?

Manimala said: (Aug 26, 2017)  
During this, over damped condition L and C are more or less?

Shubham Panwar said: (Oct 7, 2017)  
Underdamped in this damping ratio is between 0 and 1. Over damped damping ratio is greater than 1. Critically damped damping ratio is 1.

Aishu.M said: (Jan 27, 2018)  
Can anyone say the formula for damping ratio?

Swetha said: (Feb 7, 2018)  
Please give the formula for damping ratio.

K.Panda said: (Mar 8, 2018)  
Underdamped-------------- (R/2L)^2 < 1/LC.
critical damped------------- (R/2L)^2 = 1/LC.
overdamped--------------- (R/2L)^2 > 1/LC.

To make underdamped to overdamped for RLC series circuit the value of R should be increased.

Pravallika said: (Aug 26, 2018)  
It may be like this;

(R/2)^2<L/C.
(R/2)^2=L/C.
(R/2)^2>L/C.

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