Question

A -8.0 nC point charge and a +16.0 nC point charge are 12.0 cm apart on the x-axis.

A) What is the magnitude of the electric field at the point on the x-axis, between the charges, where the electric potential is zero?

Answer #1

q1 = -8 nC = -8 x 10^{-9} C

q2 = 16 nC = 1.6 x 10^{-8} C

r = 12 cm = 0.12 m

Let us consider at P electric potential is 0

potential

V = kq1/x + kq2/(r-x)

V = 0

k(q1/x + q2/(r-x)) = 0

(-8 x 10^{-9})/x + (1.6 x 10^{-8})/(0.12 - x) =
0

-8/x + 1.6/(0.12 - x) = 0

-8(0.12 - x) + 16x = 0

-0.96 + 8x + 16x = 0

24x = 0.96

x = 0.04 m

Electric field at x = 0.04 m

Electric field due to q1

E1 = kq1/0.04

Electric field due to q2

E1 = kq2/0.08

net electric field

E = E1 + E2

E = k(8/0.04 + 16/0.08) x 10^{-9}

E = 3.6 x 10^{3} N/m

A -11.5 nC point charge and a +23.0nC point charge are 14.5 cm
apart on the x-axis.
What is the electric potential at the point on the
x-axis where the electric field is zero?
What is the magnitude of the electric field at the point on the
x-axis, between the charges, where the electric potential
is zero?

A -10.5 nC point charge and a +21.0nC point charge are 18.0 cm
apart on the x-axis.
a) What is the electric potential at the point on the
x-axis where the electric field is zero?
b) What is the magnitude of the electric field at the point on
the x-axis, between the charges, where the electric
potential is zero?

1. A -9.00 nC point charge and a +18.0nC point charge are 15.0
cm apart on the x-axis.
Part A: What is the electric potential at the point on the
xxx-axis where the electric field is zero? Express your answer with
the appropriate units.
Part B: What is the magnitude of the electric field at the point
on the x-axis, between the charges, where the electric
potential is zero? Express your answer with the appropriate
units.
2. An AA battery...

A point charge q1 = 3.90 nC is placed at the origin, and a
second point charge q2 = -2.90 nC is placed on the x-axis at x=+
21.0 cm. A third point charge q3 = 2.00 nC is to be placed on the
x-axis between q1 and q2. (Take as zero the potential energy of the
three charges when they are infinitely far apart.)
a- What is the potential energy of the system of the three
charges if q3...

A point charge q1 = 3.90 nC is placed at the origin, and a
second point charge q2 = -3.10 nC is placed on the x-axis at x=+
20.0 cm . A third point charge q3 = 2.10 nC is to be placed on the
x-axis between q1 and q2. (Take as zero the potential energy of the
three charges when they are infinitely far apart.)
PART A: What is the potential energy of the system of the three
charges...

A
+5.50 nC point charge and a -3.00 nC point charge are 2.5 cm apart.
the electric field strength at the midpoint between the charges is
____ N/C.
the answer key lists the answer as 5.47x10^5. can someone
please explain how they got this answer. please do not answer if
you do not get 5.47x10^5 so i know where i went wrong.

A point charge q1 = 4.05 nC is placed at the origin,
and a second point charge q2 = -3.05 nC is placed on the
x-axis at x=+ 21.0 cm . A third point charge
q3= 1.90 nC is to be placed on the x-axis between
q1and q2. (Take as zero the potential energy of
the three charges when they are infinitely far apart.)
PART A - What is the potential energy of the system of the three
charges if...

A point charge q1 = 4.10 nC is placed at the origin, and a
second point charge q2 = -3.10 nC is placed on the x-axis at x=+
21.0 cm . A third point charge q3 = 1.90 nC is to be placed on the
x-axis between q1 and q2. (Take as zero the potential energy of the
three charges when they are infinitely far apart.)
Part A
What is the potential energy of the system of the three charges...

A -4.00 nC point charge is at the origin, and a second +8.00 nC
point charge is on the x-axis at x = 60 cm.
Find the net electric force that the two charges would exert on
a proton placed at x = 30cm?
At what location would the net electric field due to the two
charges be zero?

A point charge q1=4.20 nC is fixed at the origin. A second point
charge q2=−7.80 nC is fixed at the point x=15.0 cm.
(a) Find the point on the +x axis where the electric potential
is zero.
(b) A third charge, q3=−2.30 nC is then placed at the point
x=20.0 cm. Find the net force acting on charge q2 due to the other
two charges.

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 9 minutes ago

asked 12 minutes ago

asked 15 minutes ago

asked 17 minutes ago

asked 21 minutes ago

asked 22 minutes ago

asked 25 minutes ago

asked 27 minutes ago

asked 43 minutes ago

asked 47 minutes ago

asked 48 minutes ago

asked 51 minutes ago