Question

A dipole composed of two charges of magnitude 3.25×10^-16 c experiances a maximum torque of 1.34×10^-5 NM when placed in aregion of electrical field 1.06×10^3 N/C what is the seperation btw two charges that make up Dipole

Answer 1

The maximum torque is at 90°:

$$\tau_\text{max}=Eqd\sin90°,\\\space\\ d=\tau/(Eq)=\\=(1.34·10^{-5})/[(1.06·10^3)(3.25·10^{-16})]=\\\space\\ =38.9·10^6\text{ m}.$$