The phase angle of a series $R L$ ac circuit with a $100 - \Omega$ resistor and a $20.0 - \mathrm { mH }$ inductor is $70.0 ^ { \circ }$. What is the inductive reactance of this circuit?
A) $200 \Omega$
B) $150 \Omega$
C) $175 \Omega$
D) $275 \Omega$
E) $100 \Omega$

Question

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The Answer of The phase angle of a series $R L$ ac circuit with a $100 - \Omega$ resistor and a $20.0 - \mathrm { mH }$ inductor is $70.0 ^ { \circ }$. What is the inductive reactance of this circuit?
A) $200 \Omega$
B) $150 \Omega$
C) $175 \Omega$
D) $275 \Omega$
E) $100 \Omega$

The Phase Angle of a Series RLR LRL Ac Circuit with A

The Phase Angle of a Series $R L$ Ac Circuit with A