Pls solve the 6th one:-

Pls solve the 6th one:- 6

Dear student

F o r c e n e c e s s a r y t o h o l d t h e l e f t p a r t w i t h t h e r i g h t p a r t F = P \times (A r e a o f c i r c u l a r c r o s s s e c t i o n) (A r e a o f c i r c u l a r c r o s s s e c t i o n) = A = π \times r^{2} = π (R^{2} - h^{2}) P = i s t h e e l e c t r o s t a t i c p r e s s u r e = \frac{σ^{2}}{2 \in} σ = \frac{Q}{4 π R^{2}} P = \frac{σ^{2}}{2 \in} = \frac{Q^{2}}{16 π^{2} R^{4}} \times \frac{1}{2 \in} F = \frac{Q^{2}}{16 π^{2} R^{4}} \times \frac{1}{2 \in} \times π (R^{2} - h^{2}) = \frac{Q^{2} (R^{2} - h^{2})}{32 π R^{4} \in} R e g a r d s

Pls solve the 6th one:- ​Pls solve the 6th one:-​ 6