Question

Electric dipole consists of two opposite charges each of magnitude 10 separated by a distance of 2 centimetre and dipole is placed in a electric external magnetic field of 10 ^ 5 the maximum torque on dipole

Answer 1

Explanation:

I think the answer is 4*10000 but the answer may be wrong

Answer 2

Answer:

$\green{\tt{\therefore{Torque\:max=2\times 10^{-5}\:N-m}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\begin{gathered}\green{\underline \bold{Given :}} \\ \tt: \implies Two \: opposite \: point \: charges = 2 \: \mu C \\ \\ \tt: \implies Distance \: between \: them(r) = 1 \: cm \\ \\ \tt: \implies Electric \: field(E) = 10^{3} \: N-C \\ \\ \red{\underline \bold{To \: find :}} \\ \tt: \implies Maximum \: torque( \tau_{max}) = ?\end{gathered}$

• According to given question :

$\begin{gathered}\tt \circ \: Seperation = \frac{1}{100} = 0.01 \: m \\ \\ \bold{As \: we \: know \: that} \\ \tt: \implies Electric \: dipole = Charge \times Seperation \\ \\ \tt: \implies Electric \: dipole = 2 \times {10}^{ - 6} \times 0.01 \\ \\ \tt: \implies Electric \: dipole =2 \times {10}^{ - 8}\:C-m \\ \\ \bold{As \: we \: know \: that} \\ \tt: \implies \tau_{max}= pE \\ \\ \tt: \implies \tau_{max}= 2 \times {10}^{ - 8} \times {10}^{3} \\ \\ \green{\tt: \implies \tau_{max} =2 \times {10}^{ - 5} \: N-m}\end{gathered}$