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A + 29 nC charge is at the origin. Part A What is the radius of the 1000 V equip

ID: 1506170 • Letter: A

Question

A + 29 nC charge is at the origin.

Part A

What is the radius of the 1000 V equipotential surface?

Express your answer using two significant figures.

Part B

What is the radius of the 2000 V equipotential surface?

Express your answer using two significant figures.

Part C

What is the radius of the 3000 V equipotential surface?

Express your answer using two significant figures.

Part D

What is the radius of the 4000 V equipotential surface?

Express your answer using two significant figures.

R =   m  

Explanation / Answer

given

Q = 29 nC

A) we know, Potentail at a distance r from the charge,

V = k*Q/r

r = k*Q/V

= 9*10^9*29*10^-9/1000

= 0.26 m

B) Apply, V = k*Q/r

r = k*Q/V

= 9*10^9*29*10^-9/2000

= 0.13 m

C) Apply, V = k*Q/r

r = k*Q/V

= 9*10^9*29*10^-9/3000

= 0.087 m

D)
r = k*Q/V

= 9*10^9*29*10^-9/4000

= 0.065 m