SSC JE Electrical Engineering 2014 Set 2 Paper

Question : 165 of 200

Marks: +1, -0

Transient current in RLC circuit is oscillatory when the value of R is :

Solution:

Damping coefficient 'z' in series RLC circuit

'z'=R/2 √ { L/C}

For under damp or oscillatory system

'z'< 1

R/2 √ { L/C}<1

R<2 √ { L/C}

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