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03. Two charges 12uC, 8uC are 10 cm apart work done in bringing them 4 cm closer iS

Premsingh , 7 Years ago
Grade 12
anser 1 Answers
Arun
Dear Prem
q1=12×10^-6,q2=8×10^-6.
Wkt,potential when the are at R1(10 cm)
V1=kq1q2/R1=86.4×10^-1~=86×10^-1.
V2=kq1q2/R2=216×10^-1.
W.D=V2-V1=(216×10^-1)-(86×10^-1)=130×10^-1
                                                                =13J
 
 
Regards
Arun
Last Activity: 7 Years ago
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