Q. 645.0( 1 Vote )

A 20 μF capacitor is joined to a battery of emf 6.0 V through a resistance of 100 Ω. Find the charge on the capacitor 2.0 ms after the connections are made.

Answer :

Concepts/Formulas used:


Charging a capacitor:


A capacitor of capacitance C is being charged using a battery of emf ϵ through a resistance R . A switch S is also connected in series with the capacitor. The switch is initially open. The capacitor is uncharged at first. At t=0, the switch is closed


The charge is at any t>0 is given by:



Note that is known as time constant.


Given,


Capacitance,


EMF of battery,


Resistance,


Now,






Also,




We know that,



At t = 2.0ms,





Hence, the charge on the capacitor at t = 2.0ms is 76μC.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Electrostatics of Conductors50 mins
Electric Dipole46 mins
Electric field inside cavity37 mins
Electric Flux - Theory46 mins
Electric Charges and Fields - 0556 mins
Test Your Knowledge of Electric Charge & Coulomb's Law47 mins
Check your knowledge of Electric Potential | Quiz45 mins
Electric Charges and Fields - 0352 mins
Electric Charges and Fields - 0155 mins
Electric Charges and Fields - 0946 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :