Physics > 2014 > 39
WASSCE
Which of the following conditions occur at resonance in a series RLC circuit?
I. Impedance equals resistance
II. Current is maximum
III. Reactance are maximum
IV. Current and voltage are 90o out of phase
I. Impedance equals resistance
II. Current is maximum
III. Reactance are maximum
IV. Current and voltage are 90o 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
Answer: A
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