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An inductance of 2.0 H, a capacitance of...

An inductance of `2.0 H`, a capacitance of `18 muF` and a resistance of `10 kOmega` are connected to an AC source of `20 V` with adjustable frequency. (a) What frequency should be chosen to maximise the current in the circuit? (b) What is the value of this maximum current?

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