Ask a Doubt
Request a call back

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

JEE Class main Answered

Consider a non-ideal diode with standard diode equation iD =iS[ exp (vD/vT)-1] iD=1.7mA,if vD is changed by 2mVolts then what will be th change in iD? Express in micro Amperes.
question image
Asked by miaowmira1900 | 05 Aug, 2019, 00:06: AM
answered-by-expert Expert Answer
begin mathsize 14px style D i o d e space e q u a t i o n space colon negative space space space i subscript D space equals space i subscript S space open square brackets space e x p open parentheses v subscript D over v subscript T close parentheses space minus space 1 close square brackets space space space equals space i subscript S space e x p open parentheses v subscript D over v subscript T close parentheses space space minus space i subscript s space space.............. left parenthesis 1 right parenthesis D i i f e r e n t i a t e space e q n. left parenthesis 1 right parenthesis comma space w e space g e t comma space space space d i subscript D space equals space i subscript s space e x p open parentheses v subscript D over v subscript T close parentheses space 1 over v subscript T space d V subscript D space........... left parenthesis 2 right parenthesis I n space e q n. left parenthesis 2 right parenthesis comma space space i subscript s space e x p open parentheses v subscript D over v subscript T close parentheses space almost equal to space i subscript D space space f r o m space e q n. left parenthesis 1 right parenthesis space space b e c a u s e space d a r k space c u r r e n t space i subscript s space less than less than space i subscript D H e n c e space c h a n g e space i n space d i o d e space c u r r e n t space space d i subscript D space i s space o b t a i n e d space f r o m space e q n. left parenthesis 2 right parenthesis space a s space d i subscript D space equals i subscript D space space cross times space 1 over v subscript T space cross times space d V subscript D space equals space fraction numerator 1.7 cross times 10 to the power of negative 3 end exponent cross times 2 cross times 10 to the power of negative 3 end exponent over denominator 26 cross times 10 to the power of negative 3 end exponent end fraction space equals space 130.77 cross times 10 to the power of negative 6 end exponent space A end style
Answered by Thiyagarajan K | 05 Aug, 2019, 07:55: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
JEE main - Physics
a marble block of mass 2 kg lying on ice when a given velocity of 6 ms–1 is stopped by friction in 10 seconds then co efficient of friction is
Asked by sumalathamadarapu9 | 23 Oct, 2024, 22:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
show that the frequency of oscillations remain unchanged whether a mass attached to a spring is made to oscillate in the vertical or in the horizontal direction
Asked by py309649 | 13 Oct, 2024, 13:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
Square of the time period of revolution of a planet is proportional to the cube of the mean distance between sun and planet. If mean distance is increased by 2% then percentage change in its time period is
Asked by coolskrish | 13 Oct, 2024, 12:50: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
two particles of mass m and 4m are initially actress the sad moving towards each other due to mutual gravitational force at an instantly of m is vî then at this instant the velocity of mass 4m is
Asked by midnightmoon3355 | 09 Oct, 2024, 09:09: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
what is the second law of thermodynamics
Asked by rambabunaidu4455 | 03 Oct, 2024, 16:03: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
what is the relation between drift velocity and mobility
Asked by ratchanavalli07 | 17 Sep, 2024, 07:46: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
A ball of mass m approaches a moving wall of infinite mass with speed v along the normal to the wall. The speed of the ball is u towards the ball. The speed of the ball after elastic collision with the wall is
Asked by yayashvadutta45 | 15 Sep, 2024, 19:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
a current of 2a is flowing through a conductor of length 22m bent in arc radius 5cm
Asked by adithireddy999 | 03 Sep, 2024, 09:35: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
two vectors vector a and vector B lie in one plane vector c lie in the different plane then vector a + vector b + vector c is
Asked by vaishalinirmal739 | 29 Aug, 2024, 18:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
JEE main - Physics
What is impulse?
Asked by vradhysyam | 26 Aug, 2024, 17:17: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt