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When the key E is pressed at time t = 0,...

When the key `E` is pressed at time `t = 0`, which of the following statements about the current `I` in the resistor `AB` of the given circuit is true.

A

`2mA` at all time

B

oscillates between `1mA` and `2mA`

C

`1mA` at all time

D

At `t=0`, `I=2mA` and with time finally reduces to `1mA`

Text Solution

Verified by Experts

Initially the capacitance acts as short circuited and at steady state it acts as open circuit.
Hence, at `t=0`, `i=(2)/(1xx10^(3))=2mA`
At steady state `i=(2)/(2xx10^(3))=1mA`
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