Question

Three charges are placed at the vertices of an equilateral triangle of side a

Answer 1

Answer:

Three charges are placed at the vertices of an equilateral triangle of side a

Three charges are placed at the vertices of an equilateral triangle of side a as shown in the given figure. The force experienced by the charge placed at the vertex in a direction normal to BC is (a) Q2/4πε0a2 (b)  -Q2/(4πε0a2) (c) Zero (d) Q2/2πε0a2Read more on Sarthaks.com - https://www.sarthaks.com/244918/three-charges-are-placed-at-the-vertices-equilateral-triangle-side-shown-the-given-figure

Answer 2

The force experienced by the charge plced at the vertex A in a direction normal to BC is $\frac{Q^2}{4\pi \varepsilon _oa^2}$

Step-by-step explanation:

question :Three charges are placed at the vertices of an equilateral triangle of side a as shown in the figure. The force experienced by the charge plced at the vertex A in a direction normal to BC is :

solution:

Force due to both charge at B and C are equal in magnitude and equal to

$F_1 = \frac{Q^2}{4\pi \varepsilon _oa^2}$

Now from figure the angle between two $F_1$ is $\theta = 120^\circ$

then

the net force is

$F = \sqrt{F_1^2+F_1^2+2F_1F_1\cos 120^\circ}\\\\thus\\\\F=F_1$

and

$F_1 = \frac{Q^2}{4\pi \varepsilon _oa^2}$

hence , The force experienced by the charge plced at the vertex A in a direction normal to BC is $\frac{Q^2}{4\pi \varepsilon _oa^2}$

#Learn more :

https://brainly.in/question/2872960