A two branch circuit has a coil of resistance R1, inductance L1 in one branch and capacitance C2 in the second branch. If R is increased, the dynamic resistance is going to ___________(a) Increase(b) Decrease(c) Remains constant(d) May increase or decreaseI had been asked this question in an online interview.The doubt is from Advanced Problems on Network Theory in portion Network Theory and Complex Circuit Diagram of Network Theory

A two branch circuit has a coil of resistance R1, inductance L1 in one

1.	A two branch circuit has a coil of resistance R1, inductance L1 in one branch and capacitance C2 in the second branch. If R is increased, the dynamic resistance is going to ___________(a) Increase(b) Decrease(c) Remains constant(d) May increase or decreaseI had been asked this question in an online interview.The doubt is from Advanced Problems on Network Theory in portion Network Theory and Complex Circuit Diagram of Network Theory
Answer» CORRECT option is (b) Decrease For explanation: We know that, DYNAMIC resistance = \(\frac{L_1}{R_1 C_2}\) So, if R1 is increased, KEEPING Inductance and CAPACITANCE same, so The Dynamic resistance will decrease, as the denomination is INCREASING.

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