A capacitor, initially having a charge Q on the left plate and a charge -Q on the right plate, is connected to a switch and an inductor, as shown in the figure.
Assuming the resistance of the circuit is zero, when the switch is closed,
A) charge will flow out of the capacitor until the left plate is no longer charged, and then all current ceases.
B) current will flow until the left plate of the capacitor has a charge -Q, and then current will flow in the opposite direction, reversing again when the left plate has a charge of +Q. The cycle will then repeat over and over.
C) current will flow through the inductor back and forth, with the magnitude of the current decreasing and eventually going to zero.
D) None of the above

Question

A capacitor, initially having a charge Q on the left plate and a charge -Q on the right plate, is connected to a switch and an inductor, as shown in the figure.
 Assuming the resistance of the circuit is zero, when the switch is closed,
A) charge will flow out of the capacitor until the left plate is no longer charged, and then all current ceases. 
B) current will flow until the left plate of the capacitor has a charge -Q, and then current will flow in the opposite direction, reversing again when the left plate has a charge of +Q. The cycle will then repeat over and over. 
C) current will flow through the inductor back and forth, with the magnitude of the current decreasing and eventually going to zero. 
D) None of the above

Quizplus · Accepted Answer

The Answer of A capacitor, initially having a charge Q on the left plate and a charge -Q on the right plate, is connected to a switch and an inductor, as shown in the figure.
 Assuming the resistance of the circuit is zero, when the switch is closed,
A) charge will flow out of the capacitor until the left plate is no longer charged, and then all current ceases. 
B) current will flow until the left plate of the capacitor has a charge -Q, and then current will flow in the opposite direction, reversing again when the left plate has a charge of +Q. The cycle will then repeat over and over. 
C) current will flow through the inductor back and forth, with the magnitude of the current decreasing and eventually going to zero. 
D) None of the above

A Capacitor, Initially Having a Charge Q on the Left