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sohan singh singh Grade: 12
        

PLEASE SIR SOLVE THE PROBLEM BY USING INTEGRATION OR USING SOME STANDARD RESULT AS I CANT UNDERSTAND THE SOLUTION GIVEN BY ALL ONLINE COACHING CENTER SOLUTIONS.PLEASE HELP SIR.HERE IS THE LINK                                                                                                                                                                                                           http://www.goiit.com/posts/list/mechanics-solve-it-1015155.htm                 

6 years ago

Answers : (1)

Nehal Wani
21 Points
										

Derivation Of Electric Field Due to One Hemisphere.


σ=Q/2π


4π Solid Angle Corresponds To Q/ε0 Flux.............................From Gauss's Theorem


2π Solid Angle Will Correspond To Q/2εFlux


Q/2ε0=E2π


E=Q/(2ε0R²)


E=σ/2ε0


Force= F= Edq..........................(F applied will be used to counteract this force)


dq=dAσ


F=(σ/2ε0)(dAσ)


P=F/dA=σ²/2ε0


Force Due To One Hemisphere On Other


=PπR².........................(πR² because we are calculating force on the rim of other hemisphere)


=(σ²/2ε0)π


=πR²σ²/2ε0

6 years ago
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