A thin isentropic dielectric rod is placed between two unlike charged spheres having charges \[+\,{{q}_{1}}\] and \[-\,{{q}_{2}}\] as shown below. |
Now choose the correct option. |
A) Force on \[{{q}_{1}}\] will be more
B) Force on\[{{q}_{1}}\]will be less
C) Force on \[{{q}_{1}}\]remains same
D) Magnitude of force depends on dielectric constant of rod
Correct Answer: A
Solution :
Due to induced charge produced by polarisation of dielectric, charge \[{{q}_{1}}\] will be acted upon by an additional charge. |
As negative induced charge is now more near to \[{{q}_{1}}\]than induced positive charge, attraction is more prominent. Hence, net force on \[{{q}_{1}}\] will be more. |
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