As shown in the figure, a circuit consists of a resistor $R = 18 \Omega$ in series with an ideal inductor $L = 33 \mathrm { H }$ having no resistance. At time $t = 0 \mathrm {~s}$, there is a 12-A current in the circuit. When the magnetic energy of the inductor is $1600 \mathrm {~J}$, what is the rate of dissipation of energy in the resistor?

A) $1700 \mathrm {~W}$
B) $2200 \mathrm {~W}$
C) $870 \mathrm {~W}$
D) $1300 \mathrm {~W}$
E) $440 \mathrm {~W}$

Question

As shown in the figure, a circuit consists of a resistor $R = 18 \Omega$ in series with an ideal inductor $L = 33 \mathrm { H }$ having no resistance. At time $t = 0 \mathrm {~s}$, there is a 12-A current in the circuit. When the magnetic energy of the inductor is $1600 \mathrm {~J}$, what is the rate of dissipation of energy in the resistor?

A) $1700 \mathrm {~W}$ 
B) $2200 \mathrm {~W}$ 
C) $870 \mathrm {~W}$ 
D) $1300 \mathrm {~W}$ 
E) $440 \mathrm {~W}$

Quizplus · Accepted Answer

The Answer of As shown in the figure, a circuit consists of a resistor $R = 18 \Omega$ in series with an ideal inductor $L = 33 \mathrm { H }$ having no resistance. At time $t = 0 \mathrm {~s}$, there is a 12-A current in the circuit. When the magnetic energy of the inductor is $1600 \mathrm {~J}$, what is the rate of dissipation of energy in the resistor?

A) $1700 \mathrm {~W}$ 
B) $2200 \mathrm {~W}$ 
C) $870 \mathrm {~W}$ 
D) $1300 \mathrm {~W}$ 
E) $440 \mathrm {~W}$

As Shown in the Figure, a Circuit Consists of a Resistor