In a series combination of R- L and C to an AC source at resonance- if R - 20 - then impedance Z of the combination is

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Standard XII

Physics

Power Factor

In a series c...

Question

In a series combination of R, L and C to an AC source at resonance, if R = 20 $Ω$ , then impedance Z of the combination is

Ω

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zero

Ω

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Ω

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400

Ω

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Solution

The correct option is A 20 $Ω$
At resonance the reactance is zero thus the impedance is same as the resistance of the combination.

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In a series combination of R, L and C to an AC source at resonance, if R = 20 Ω, then impedance Z of the combination is

The correct option is A 20 ΩAt resonance the reactance is zero thus the impedance is same as the resistance of the combination.

In a series combination of R, L and C to an AC source at resonance, if R = 20 $Ω$ , then impedance Z of the combination is

The correct option is A 20 $Ω$
At resonance the reactance is zero thus the impedance is same as the resistance of the combination.