Question

When the key K is pressed at time $t = 0$. Which of the following statements about the current i in the resistor AB of the adjoining circuit is true

• A. $i = 2 m A$ at all t
• B. i oscillates between 1mA and 2Ma
• C. i = 1mA at all t
• D. At t = 0, i = 2mA and with time it goes to 1mA

Answer 1

Answer: (D)

At t = 0, i = 2mA and with time it goes to 1mA

Answer 2

At $1000 \Omega$ and current $2 m A$ at $1 m A$.