There is no current in the circuit shown in the figure below until the switch is closed. The current through the 20-Ω resistor the instant after the switch is closed is either [1] 15 A or [2] 5.0 A, and the current through the 20-Ω resistor after the switch has been closed a long time is either [3] 5.0 A or [4] 15 A. Which combination of the above choices is correct?
A) [1] and [3]
B) [1] and [4]
C) [2] and [3]
D) [2] and [4]
E) None of these

Question

There is no current in the circuit shown in the figure below until the switch is closed. The current through the 20-Ω resistor the instant after the switch is closed is either [1] 15 A or [2] 5.0 A, and the current through the 20-Ω resistor after the switch has been closed a long time is either [3] 5.0 A or [4] 15 A. Which combination of the above choices is correct? 
A) [1] and [3] 
B) [1] and [4] 
C) [2] and [3] 
D) [2] and [4] 
E) None of these

Quizplus · Accepted Answer

The Answer of There is no current in the circuit shown in the figure below until the switch is closed. The current through the 20-Ω resistor the instant after the switch is closed is either [1] 15 A or [2] 5.0 A, and the current through the 20-Ω resistor after the switch has been closed a long time is either [3] 5.0 A or [4] 15 A. Which combination of the above choices is correct? 
A) [1] and [3] 
B) [1] and [4] 
C) [2] and [3] 
D) [2] and [4] 
E) None of these

There Is No Current in the Circuit Shown in the Figure