Question 699: Electrostats & Capacitance

Question

If a charge $$q$$ is placed at the center of the line joining two equal charges $$Q$$ such that the system is in equilibrium then the value of $$q$$ is

Accepted Answer

For equilibrium of charge $$Q$$
$$K{{Q 	imes Q} \over {{{\left( {2x} ight)}^2}}} + K{{Qq} \over {{x^2}}} = 0 \Rightarrow q =  - {Q \over 4}$$

Answer

$$Q/2$$

Answer

$$ - Q/2$$

Answer

$$Q/4$$

Answer

$$ - Q/4$$

Electrostats & Capacitance

If a charge $q is placed at the center of the line joining two equal charges Q such that the system is in equilibrium then the value of q$ is

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