Question 953: Electrostats & Capacitance

Question

Three point charges +q, $$-$$ 2q and + q are placed at points (x = 0, y = a, z = 0), (x = 0, y = 0, z = 0) and (x = $$a$$, y = 0, z = 0) respectively. The magnitude and direction of the electric dipole moment vector of this charge assembly are

Accepted Answer

This consists of two dipoles, Ã¢ÂÂq and +q with dipole moment along with the +y-direction and Ã¢ÂÂq and +q along the x-direction.
$$ 	herefore $$  The resultant moment = 
 $$\sqrt {{q^2}{a^2} + {q^2}{a^2}}  = \sqrt 2 qa$$
Along the direction 45ÃÂ° that is along OP where P is (+a, +a, 0).

Answer

$$\sqrt 2 qa$$ along the line joining points (x = 0, y = 0, z = 0) and (x = $$a$$, y = a, z = 0)

Answer

q$$a$$ along the line joining points (x = 0, y = 0, z = 0) and (x = $$a$$, y = a, z = 0)

Answer

$$\sqrt 2 qa$$ along +x direction

Answer

$$\sqrt 2 qa$$ along +y direction.

Electrostats & Capacitance

Three point charges +q, $- 2q and + q are placed at points (x = 0, y = a, z = 0), (x = 0, y = 0, z = 0) and (x = a$, y = 0, z = 0) respectively. The magnitude and direction of the electric dipole moment vector of this charge assembly are

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