English
Hindi
2. Electric Potential and Capacitance
medium

વિધુતસ્થિતિમાન $V = (5x^2 + 10x -9)\ volt$ હોય તો $x = 1\ m$ બિંદુએ વિધુતક્ષેત્ર કેટલા ......$V/m$ થાય?

A

$-20$

B

$6$

C

$11$

D

$-23$

Solution

$E = – \frac{{dV}}{{dx}}$; $E = – \frac{d}{{dx}}(5{x^2} + 10x – 9) = (10x + 10)$,

$x = 1\ m$     

$E = – 20\,V/m$

Standard 12
Physics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.