A positive point charge ( q = +5.62×10−8 C ) is surrounded by an equip

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A positive point charge ( q = +5.62×10−8 C ) is surrounded by an equipotential surface A, which has a radius of rA = 1.66 m. A positive test charge (q0 = +3.12×10−11 C) moves from surface A to another equipotential surface B, which has a radius rB. The work done by the electric force as the test charge moves from surface A to surface B is WAB = −9.39×10−9 J. Find rB. rB =

A positive point charge ( q = +5.62×10−8 C ) is surrounded by an equipotential surface A, which has a radius of rA = 1.66 m. A positive test charge (q0 = +3.12×10−11 C) moves from surface A to another equipotential surface B, which has a radius rB. The work done by the electric force as the test charge moves from surface A to surface B is WAB = −9.39×10−9 J. Find rB. rB =

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A positive point charge (

q = + 5.62 \times 10^{- 8} C

) is surrounded by an equipotential surface

A

, which has a radius of

r_{A} = 1.66 m

. A positive test charge (

q_{0} = + 3.12 \times 10^{- 11} C

) moves from surface

A

to another equipotential surface

B

, which has a radius

r_{B}

. The work done by the electric force as the test charge moves from surface

A

to surface

B

is

W_{A B} = - 9.39 \times 10^{- 9} J

. Find

r_{B}

.

r_{B} =

i

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