Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

JEE Class main Answered

Please solve the problem urgently...
question image
Asked by miaowmira1900 | 01 Sep, 2019, 06:29: PM
answered-by-expert Expert Answer
If switch is initially at A means, it is assumed that capacitor is connected to
40 V voltage source for sufficiently long time  through 5kΩ resistor.
 
Let us assume switch is now operated at t = 0 so that contact is made at B,
then capacitor discharging through 2 kΩ resistor
 
Initial voltage across capacitor plates is 40 V
 
Then voltage v(t) across plates as a function of time is given by,
 
begin mathsize 14px style v left parenthesis t right parenthesis space equals space v left parenthesis 0 right parenthesis space e to the power of bevelled fraction numerator negative t over denominator R C end fraction end exponent space equals space 40 space e to the power of bevelled fraction numerator negative t over denominator left parenthesis 2000 cross times 10 cross times 10 to the power of negative 6 end exponent right parenthesis end fraction end exponent space equals space 40 space e to the power of negative 50 t end exponent space V end style
Answered by Thiyagarajan K | 01 Sep, 2019, 07:29: PM

Application Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
JEE main - Physics
find current
question image
Asked by arivaryakashyap | 23 Apr, 2024, 10:40: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
Three equal charges, 2⋅0 × 10 − 6 C each, are held fixed at the three corners of an equilateral triangle of side 5 cm. Find the Coulomb force experienced by one of the charges due to the rest two.
question image
Asked by ratnadeep.dmr003 | 21 Apr, 2024, 11:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
Time period for a simple harmonic motion (d ^ 2 * x)/(d * t ^ 2) =- mu xis:
Asked by ksahu8511 | 19 Apr, 2024, 11:55: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
find the acceleration
question image
Asked by mohammedimroz | 13 Apr, 2024, 09:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
solution of 12th question
question image
Asked by medhamahesh007 | 02 Apr, 2024, 11:11: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
if Bi with a mass number 211 and atomic number 83 undergoes beta decay the resultant daughter nuclei will be
Asked by gundlasumathi93 | 31 Mar, 2024, 02:13: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
four charges are arranged at corners of square abcd as in figur the force on charge kept at centre o is
question image
Asked by chhayasharma9494 | 31 Mar, 2024, 12:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
two small conducting spheres each of mass 9×10‐⁴kg qre suspended from the same point by non conducting strings of length 100cm. they are given equal and similar charges until the strings are rqually inclined at 45° each to the vertcal. The charge on each sphere is
Asked by archithateja3 | 30 Mar, 2024, 10:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
how to draw straight line graph and how to identify y-intercept and slope
Asked by Machinenineha | 27 Mar, 2024, 05:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
Help me
question image
Asked by nandichandi33 | 24 Mar, 2024, 09:21: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×