An electric dipole consisting of two opposite charges of 2 × 10⁻⁶ C separated by a distance of 3 cm placed in an electric field of 2 × 10⁵ N/C then the maximum torque acting on dipole is (a) 12 × 10⁻¹ N-m (b) 24 × 10⁻³ N-m (c) 12 × 10⁻³ N-m (d) 24 × 10⁻¹ N-m

Answer: (c). τmax = pE = q(2l)E τmax = 2×10⁻⁶ × 0.03 × 2×10⁵ = 12×10⁻³ N m So the answer is (c) 12 × 10⁻³ N-m.

An electric dipole consisting of two opposite charges of 2 × 10⁻⁶ C… | MHT CET 2023 (10 May, Shift 1)

Q40MHT CET 2023 · 10 MAY · SHIFT 1Easy

Electric Dipole

An electric dipole consisting of two opposite charges of $2 \times 10^{-6}\text{ C}$ separated by a distance of $3\text{ cm}$ placed in an electric field of $2 \times 10^{5}\text{ N/C}$ then the maximum torque acting on dipole is

Show answer and solution

Answer: (c)

$\tau_{max} = pE = q(2l)E$
$\tau_{max} = 2\times10^{-6} \times 0.03 \times 2\times10^{5} = 12\times10^{-3}$ N m
So the answer is (c) $12 \times 10^{-3}$ N-m.

Report a mistake

Electric Dipole question from MHT CET 2023 (10 May, Shift 1)

More questions on Electric Dipole