An electric dipole consists of a positive charge and negative charge of magnitude 4 μ C each placed at a distance of 5 mm. What is the dipole moment?

Question

An electric dipole consists of a positive charge and negative charge of magnitude 4 μ C each placed at a distance of 5 mm. What is the dipole moment? (A) 2 × 10-6 C - m (B) 2 × 10-8 C - m (C) 4 × 10-5 C - m (D) 5 × 10-8 C - m

Tardigrade Admin · Accepted Answer

q=± 4 μ c 2 a=5 × 10-3 m | vecP|=q × 2 a =4 × 10-6 × 5 × 10-3 =20 × 10-9 | vec P |=2 × 10-8 cm

Q. An electric dipole consists of a positive charge and negative charge of magnitude $4 μ C$ each placed at a distance of $5 mm$ . What is the dipole moment?

$2 \times 1 0^{- 6} C - m$

$2 \times 1 0^{- 8} C - m$

$4 \times 1 0^{- 5} C - m$

$5 \times 1 0^{- 8} C - m$

$q = \pm 4 μ c$
$2 a = 5 \times 1 0^{- 3} m$
$∣ P ∣ = q \times 2 a$
$= 4 \times 1 0^{- 6} \times 5 \times 1 0^{- 3}$
$= 20 \times 1 0^{- 9}$
$∣ P ∣ = 2 \times 1 0^{- 8} c m$

Q. An electric dipole consists of a positive charge and negative charge of magnitude 4μC each placed at a distance of 5mm. What is the dipole moment?

2×10−6C−m

2×10−8C−m

4×10−5C−m

5×10−8C−m