My answer in “BOLD”
A security alarm for an office building door is modeled by the circuit
shown. The switch represents the door interlock, and V is the alarm
indicator voltage. The switch has been closed for a long time at t=0.
find the voltage, v(t), for t>0 for the circuit shown.
A) 2V
B) 18e(-t/24) V
C) 2e(-24t) V
D) 18e(-24t) V
