JEE Main 12 Jan 2019 Evening Question 14

Question: The charge on a capacitor plate in a circuit, as a function of time, is shown in the figure, What is the value of current at t = 4 s? [JEE Main Online Paper Held On 12-Jan-2019 Evening]

Options:

A) $ 3\mu A $

B) zero

C) $ 1.5\mu A $

D) $ 2\mu A $

Show Answer

Answer:

Correct Answer: B

Solution:

As the charge is constant on the plate for $ t=2s $ to $ t=6s. $ So for $ t=4s, $ the current will be zero