Which of the following conditions occur at resonance in a series RLC circuit? i. Impedance equals resistance ii. Current is maximum iii. Reactance is maximum iv. Current and voltage are 90^\circ out of phase
A
i and ii only
B
i and iii only
C
i, ii and iii only
D
i, ii, iii and iv
Verified Correct Answer: A.
Physical Principles & Numerical Solution
conditions for the occurrence of resonance in a series RLC circuit are i) impedance is at minimum ie when inductive and capacitive reactances are equal ii) when current is maximum
Source: Myschool Past Questions Archive (Record #35773)