Question

Find the dipole moment of a dipole with equal charges 4C and -4C separated by a distance of 2cm (a)0.06cm, (b)0.08cm, (c)0.02cm, (d)0.10cm

Answer 1

Given ,

The pair of equal and opposite charges of 4 C and -4 C are separated by a distance a 2 cm

We know that , the electric dipole moment is given by

$\boxed{ \sf{Dipole \: moment \: (P) = q × 2l }}$

Where ,

q = charge

2l = distance b/w two charges

Thus ,

P = 4 × 2 × 10^(-2)

P = 8 × 10^(-2)

P = 0.08 c-m

∴The correct option is (b) i.e 0.08 c-m