A series LR circuit includes a $9.00 \mathrm{~V}$ battery, a $30.0 \mathrm{mH}$ inductor, and a resistance of $5.00 \Omega$. What is the time constant of this circuit?

A) $170 \mathrm{~s}$
B) $115 \mathrm{~s}$
C) $4.20 \mathrm{~ms}$
D) $8.30 \mathrm{~ms}$
E) $6.00 \mathrm{~ms}$

Question

A series LR circuit includes a $9.00 \mathrm{~V}$ battery, a $30.0 \mathrm{mH}$ inductor, and a resistance of $5.00 \Omega$. What is the time constant of this circuit?

A) $170 \mathrm{~s}$ 
B) $115 \mathrm{~s}$ 
C) $4.20 \mathrm{~ms}$ 
D) $8.30 \mathrm{~ms}$ 
E) $6.00 \mathrm{~ms}$

Quizplus · Accepted Answer

The Answer of A series LR circuit includes a $9.00 \mathrm{~V}$ battery, a $30.0 \mathrm{mH}$ inductor, and a resistance of $5.00 \Omega$. What is the time constant of this circuit?

A) $170 \mathrm{~s}$ 
B) $115 \mathrm{~s}$ 
C) $4.20 \mathrm{~ms}$ 
D) $8.30 \mathrm{~ms}$ 
E) $6.00 \mathrm{~ms}$

A Series LR Circuit Includes A 9.00 V9.00 \mathrm{~V}9.00 V Battery, A 30.0mH30.0 \mathrm{mH}30.0mH

A Series LR Circuit Includes A $9.00 \mathrm{~V}$ Battery, A $30.0 \mathrm{mH}$