Question
Physics Question on Electric Field
A conducting sphere is charged. If the electric field at a distance of 20 cm from the center of this sphere is 1.2x103NC-1 and points radially inward, the net charge on this sphere is
A
4.5×10^9 C
B
-4.5×10^-9 C
C
1.7×10^9 C
D
-5.3×10^-9 C
Answer
-5.3×10^-9 C
Explanation
Solution
The correct answer is (D): -5.3×10^-9 C