Question

An electric dipole is formed by +2µC and -2μC charges at 1 mm distance. The magnitude of electric dipole moment of the dipole is

1 nC m

2 nC m

4 nC m

0.5 nC m​

Answer 1

Answer:-

• Charge=Q1=2uC
• Charge=Q2=-2uC

We know

$\boxed{\sf Q_{net}=Q_1-Q_2}$

$\\ \sf\longmapsto Q_{net}=2-(-2)$

$\\ \sf\longmapsto Q_{net}=2+2$

$\\ \sf\longmapsto Q_{net}=4\mu C$

• Length=1mm=10^{-4}m[/tex]

We know

$\boxed{\sf Electric\:Diople\:moment=Charge\times 2(Length)}$

$\\ \sf\longmapsto Electric\:Diople\:Moment=4\times 10^{-6}\times 2\times 10^{-4}$

$\\ \sf\longmapsto Electric \:Diople\:Moment= 8\times 10^{-10}Cm$

$\\ \sf\longmapsto Electric\:Diople\:moment=8\times 10^{-9}Cm$

$\\ \sf\longmapsto Electric\:Diople\:Moment=0.8nCm$