JEE Main202529 Jan 2025Evening ShiftPhysicsCapacitanceActual
A parallel plate capacitor consisting of two circular plates of radius 10 cm is being charged by a constant current of 0.15 A . If the rate of change of potential difference between the plates is 7 10^8 ~V / s then the integer value of the distance between the parallel plates is ( . Take, . ₀=9 10⁻¹² ~F ~m , = 22 7 ) ________ m .
Correct answer
0
Step-by-step solution
aligned & Q=c V & V= Q c = i t ( ₀ A d ) & d= ₀ r^2 i ( v t ) aligned Putting values aligned d & = 9 10⁻¹² 22 7 (0.1)^2 0.15 (7 10^8 ) & =1320 ~m aligned