A $50 - \Omega$ resistor is placed in series with a $40 - \mathrm { mH }$ inductor. At what frequency will the current in this circuit lag the applied voltage by exactly $45 ^ { \circ }$ ?

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The Answer of A $50 - \Omega$ resistor is placed in series with a $40 - \mathrm { mH }$ inductor. At what frequency will the current in this circuit lag the applied voltage by exactly $45 ^ { \circ }$ ?

A 50−Ω50 - \Omega50−Ω Resistor Is Placed in Series with A 40−mH40 - \mathrm { mH }40−mH

A $50 - \Omega$ Resistor Is Placed in Series with A $40 - \mathrm { mH }$