The two charges in the figure below are separated by d = 4.00 cm. (Let q₁ = -16.5 nC and 9₂ = 27.5 nC.) 9, d 60.0° d (a) Find the electric potential at point A. kv (b) Find the electric potential at point B, which is halfway between the charges. kv
The two charges in the figure below are separated by d = 4.00 cm. (Let q₁ = -16.5 nC and 9₂ = 27.5 nC.) 9, d 60.0° d (a) Find the electric potential at point A. kv (b) Find the electric potential at point B, which is halfway between the charges. kv
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter16: Electrical Energy And Capacitance
Section: Chapter Questions
Problem 12P: The two charges in Figure P16.12 are separated by d = 2.00 cm. Find the electric potential at (a)...
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Transcribed Image Text:The two charges in the figure below are separated by d = 4.00 cm. (Let q₁ = -16.5 nC and q₂ = 27.5 nC.)
9,
d
60.0°
d
d
(a) Find the electric potential at point A.
kV
(b) Find the electric potential at point B, which is halfway between the charges.
kV
Expert Solution
Step 1
a)
Given, d = 4 cm = 0.04 m
q1 = - 16.5 nC = -16.5×10^-9 C
q2 = 27.5 nC = 27.5×10^-9 C
k = 9×10^9
For charge q1 the potential at A is
V1= kq1/d
For charge q2 the potential at A is
V2= kq2/d
Net potential at A is V =V1 + V2
= k(q1-q2)/d
= 9×10^9 ×(-16.5+27.5)×10^-9/.04
= 2475 V
= 2.47 kV
Answer : 2.47 kV
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