Question

a particle with charge Q is on the y axis a distance a from the origin and a particle with charge qi is on the x axis at a distance d from the origin. The value of d for which the x component of the force on the second particle is the greatest is

Answer 1

Step-by-step explanation:

Force on Q due to q₁

= k Q.q₁ / r² , r is distance between two.

X component

= k Q.q₁ / r² x cos θ , θ is angle r makes with x - axis.

= k Q.q₁ / r² x cos θ

r = a / sinθ

X component

= k Q.q₁ sin²θ . cosθ/ a²

= k Q.q₁ / 2 a² x sin2θ . sinθ

for maximum value of it ,

sin2θ = 1 , θ = 45°

a / d = tan45

a = d .