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QJEEM19Phd825: JEE Main 2019 Physics - Class 12 JEEM19Phd825 Solution: The charge on a capacitor plate in a circuit, as a function of…

The charge on a capacitor plate in a circuit, as a function of time, is shown in the figure :

JEE Main 2019 (Online) 12th January Evening Slot Physics - Capacitor Question 116 English
When is the value of current at t = 4 s ?

Multiple Choice Options

  • A zero
  • B 1.5 μ\mu A
  • C 2 μ\mu A
  • D 3 μ\mu A

Step-by-Step Verified Solution

As we know, Current, I=dqdtI = {{dq} \over {dt}}

= Slope of q versus t graph

= Zero at t = 4s; (as graph is a line parallel to time axis at t = 4s)

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