Question
Can anyone help with the following? I think i have the answer i would just like to verify that it is correct,
An equipotential surface that surrounds a point charge q has a potential of 490 V and an area of 1.1 m2. Determine q
An equipotential surface that surrounds a point charge q has a potential of 490 V and an area of 1.1 m2. Determine q
Answers
Ryan
A=4πr² --> r=sqrt(A/4π)
r=sqrt(1.2/4π)= 0.30 m
φ=q/4πε₀r --> q=4πε₀rφ
q=4π(8.85x10^-12)(0.30m)(490V)=1.63x10^-8C
r=sqrt(1.2/4π)= 0.30 m
φ=q/4πε₀r --> q=4πε₀rφ
q=4π(8.85x10^-12)(0.30m)(490V)=1.63x10^-8C