What resistance must be put in series with a $30 - \mathrm { mH }$ inductor at $4000 \mathrm {~Hz}$ to have a total impedance of $8.0 \times 10 ^ { 4 } \Omega$ ?
A) $6.0 \times 10 ^ { 4 } \Omega$
B) $7.0 \times 10 ^ { 4 } \Omega$
C) $30 \times 10 ^ { 4 } \Omega$
D) $8.0 \times 10 ^ { 4 } \Omega$
E) $5.0 \times 10 ^ { 4 } \Omega$

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The Answer of What resistance must be put in series with a $30 - \mathrm { mH }$ inductor at $4000 \mathrm {~Hz}$ to have a total impedance of $8.0 \times 10 ^ { 4 } \Omega$ ?
A) $6.0 \times 10 ^ { 4 } \Omega$
B) $7.0 \times 10 ^ { 4 } \Omega$
C) $30 \times 10 ^ { 4 } \Omega$
D) $8.0 \times 10 ^ { 4 } \Omega$
E) $5.0 \times 10 ^ { 4 } \Omega$

What Resistance Must Be Put in Series with A 30−mH30 - \mathrm { mH }30−mH

What Resistance Must Be Put in Series with A $30 - \mathrm { mH }$