A series RLC circuit is connected to a constant peak-voltage source

PHYSICS · Single correct · CBSE · Physics · Alternating Current · Alternating Current

Problem

A series RLC circuit is connected to a constant peak-voltage source. The impedance is

80\,\Omega

1\,\text{kHz}

and

40\,\Omega

at the circuit’s resonant frequency. Which statement about the current amplitudes

I_{m1}

(at

1\,\text{kHz}

) and

I_{m0}

(at resonance) is correct? (a)

I_{m1}

equals

I_{m0}

(b)

I_{m1}

is twice

I_{m0}

(c)

I_{m1}

is half of

I_{m0}

(d)

I_{m1}

0.707\,I_{m0}

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