Question

Three charges $+q,+2q$ and $4q$ are placed at point $A(0,0),B(0,a)$ and $C(0,2a)$ and connected by strings. What is ratio of tensions in the strings $AB$ and $BC$.

• A. $1:2$
• B. $1:3$
• C. $2:1$
• D. $3:1$

Answer 1

The correct option is A $1:2$

Tension ratio will be

$\frac{T_1}{T_2}=\frac{a}{2a}$

or, $T_1:T_2=1:2$