Question

A long uniformly charged thread (linear charge density ? = 1.8 C/m ) lies along the x axis in the figure.(Figure 1) A small charged sphere (Q = -2.1 C ) is at the point x=0cm, y=?5.0cm.

What is the direction of the electric field at the point
*x*=7.0cm, *y*=7.0cm?
**E****?** thread and
**E****?** Q represent fields due to the
long thread and the charge *Q*, respectively.

What is the magnitude of the electric field at the point
*x*=7.0cm, *y*=7.0cm?

Answer #1

The distance from sphere to point (7,7)

d = sqrt((0.07)^{2}+ (0.07 + 0.05)^{2})

d = 0.1389244

E = 9e9*2.1 / 0.0193

E = - 9.793e11

? = tan^{-1}0.12 /0.07 = 59.74

so, E_{x} = -9.793e11 * cos 59.74 = -4.935e11

E_{y} = -9.793e11 * sin 59.74 = -8.459e11

Also, Due to string

E_{y} = 2*9e9*1.8 / 0 .07 = 4.629e11

Therefore,

|E| = sqrt ((-4.935e11)^{2} + (-8.459e11 +
4.629e11)^{2}

|E| = sqrt ((-4.935e11)^{2} + (-3.83E11)^{2}

|E| = 6.247E11 N/C

Direction

? = tan^{-1} (3.83 / 4.935)

? = 37.81 degree below the negative x -axis

A long uniformly charged thread (linear charge density λλlambda
= 1.7 C/mC/m ) lies along the xxx axis in the figure.(Figure 1) A
small charged sphere (QQQ = -2.3 CC ) is at the point x=0cmx=0cm,
y=−5.0cmy=−5.0cm.
What is the direction of the electric field at the point
x=7.0cmx=7.0cm, y=7.0cmy=7.0cm? E⃗ threadE→thread and E⃗ QE→Q
represent fields due to the long thread and the charge QQ,
respectively.
Express your answer to two significant figures and include the
appropriate units.
What...

A charge (uniform linear density = 6.1 nC/m) lies on a string
that is stretched along an x axis from x = 0 to x = 2.3 m.
Determine the magnitude of the electric field at x = 6.5 m on the x
axis.

A thin rod 39.2 cm long is charged uniformly with a
positive charge density of 46.0 ?C/m. The rod is
placed along the y-axis and is centered at the origin. A charge of
+43.0 ?C is placed 51.2 cm from the midpoint of
the rod on the positive x-axis. Calculate the electric field at a
point on the x-axis, which is halfway between the point charge and
the center of the rod. (Express your answer in terms of the unit...

An infinitely long line charge of uniform linear charge density
λ = -2.10 µC/m lies parallel to the y axis at x = -3.00 m. A point
charge of 2.40 µC is located at x = 2.00 m, y = 3.00 m. Find the
electric field at x = 3.00 m, y = 2.50 m.

A very long uniform line of charge has charge per unit length
4.80 μC/m and lies along the x-axis. A second
long uniform line of charge has charge per unit length -2.32
μC/m and is parallel to the x-axis at y1
= 0.414 m .
Part A
What is the magnitude of the net electric field at point
y2 = 0.214 mon the y-axis?
Part B
What is the magnitude of the net electric field at point
y3 = 0.616...

A rod 12.0 cm long is uniformly charged and has a total charge
of -25.0 µC. Determine the magnitude and direction of the electric
field along the axis of the rod at a point 36.0 cm from its center.
magnitude=?

A rod 12.0 cm long is uniformly charged and has a total charge
of -21.0 µC. Determine the magnitude and direction of the electric
field along the axis of the rod at a point 36.0 cm from its
center.
magnitude
N/C

Two parallel, uniformly charged, infinitely long wires carry
opposite charges with a linear charge density ? = 2.37
?C/m and are 5.47 cm apart. What is the magnitude of the electric
field at a point midway between them and 51.9 cm above the plane
containing the two wires?

An infinite line charge of uniform linear charge density lambda
= -2.7 microC/m lies parallel to the y
axis at x = 0 m. A point charge of
3.5 microC is located at x =
1.0 m, y = 2.0 m.
Find the x component of the electric field at
x = 2.0 m, y =
1.5 m.

Positive charge Q is distributed uniformly along a rod of length
L that lies along the x-axis from x=L to x=2L. How much charge is
contained within a segment of the rod of length dx?
Integrate to find the total electric potential at the origin
(x=0) due to the rod.
Express your answer in terms of the electric constant
ϵ0epsilon_0 and variables Q,L

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 1 minute ago

asked 2 minutes ago

asked 5 minutes ago

asked 29 minutes ago

asked 30 minutes ago

asked 31 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago