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In a RLC series circuit, if the resistance R and inductance L are kept constant but capacitance C is decreased, then which one of the following statements is/are correct? 1. Time constant of the circuit is changed. 2. Damping ratio decreases. 3. Natural frequency increases. 4. Maximum overshoot is unaffected.

In a RLC series circuit, if the resistance R and inductance L are kept constant but capacitance C is decreased, then which one of the following statements is/are correct? 1. Time constant of the circuit is changed. 2. Damping ratio decreases. 3. Natural frequency increases. 4. Maximum overshoot is unaffected. Correct Answer 2 and 3

G = R/2 C decreases, G decreases i.e., damping ratio decreases w = 1/√LC Time constant = 2L/R As C decreases, time constant remains unaffected and Natural frequency increases.

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