Question

ABC is a right angled triangle in which AB = 3 em
and BC = 4 cm. And ABC = π\2. The three
charges +15, +12 and -20 e.su. are placed
respectively on A, B and c. The force acting on
B is
(a) 125 dynes (b)
35 dynes
(c) 25 dynes
(d) Zero​

Answer 1

ABC is a right angled triangle in which AB = 3 em

and BC = 4 cm. And ABC = π\2. The three

charges +15, +12 and -20 e.su. are placed

respectively on A, B and c. The force acting on

B is

(a) 125 dynes

(b)35 dynes

(c) 25 dynes✔️✔️✔️

(d) Zero