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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

l = 2 mA at all t

B

I oscillates between 1 mA and 2mA

C

I = 1 mA at all t

D

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

Text Solution

Verified by Experts

The correct Answer is:
D

If t=0, capacitor short circuit
`I =2/1000 = 2mA`
when capacitor is fully charged it is open circuit-
`I. = 2/2000 = 1 mA`
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