Problem 1-
Two long, straight wires are at 0.20 m
distance from each other, as shown in the figure. The direction of
the current in the wire on the left ( I1 = 15.0 A) is
out of the paper and the direction of the current in the wire on
the right ( I2 = 25.0 A ) is into the paper.
Find the magnitude of the magnetic field B1 and its
direction due to I1 at point P at...
Two long, straight wires are perpendicular to the plane of the
paper and at a distance 0.2 m from each other, as shown in the
figure. The wires carry currents of I1 = 2.6 A and I2 = 5 A in the
direction indicated (out of the page). Find the magnitude and
direction of the magnetic field (in µT) at a point A midway between
the wires. You need to indicate the direction with a positive or a
negative value...
Two long straight wires separated by 0.10 m carry current in the
direction as shown. If I1=12 A and I2= 8 A,
find the magnitude and the direction of the net magnetic field
a) at point A at a distance of 4 cm from wire 2 in the region
between wire 1 and 2
b) at point B at a distance 5 cm left of wire 1.
Two infinite planar sheets are placed parallel to each other.
One sheet is uniformly charged with +10 nC/cm^2 and the other with
-20nC/cm^2.
A point charge of -5 nC is placed
a) between the sheets
b) in the outside regions.
For each case calculate the strength and show the direction of the
electric force experienced by the point charge.
Two very long straight wires carry current I in opposite
directions as shown below. The distance from the origin to each of
the wires is d. Draw the magnetic field vector on the figure for
each of the points listed below. You must indicate both the
magnitude and direction of the magnetic field at all points.
The origin x=0, y=0
x= 2d, y=0
x= -2d, y=0
x=d, y = -d
x= -d, y=d
the rod below is a uniformly charged semicircle of arc length
.14 m. If the total charge on the rod is -7.50 muy c, magnitude and
direction of the electric field at point O? Point O is in the
center of the semicircle.
Two long, parallel wires are separated by 3.0 m. Each wire has a
31-A current, but the currents are in opposite directions.
A) Determine the magnitude of the net magnetic field midway
between the wires.
B) Determine the magnitude of the net magnetic field at a point
1.5 m to the side of one wire and 4.5 m from the other wire. The
point is in the same plane as the wires.
Three long wires are all parallel to each other and are all in
the xy plane. Wire 1 runs along the y axis and
carries a current of 1.64 A in the +y direction. Wire 2
runs along the
x = 25.0 cm
line and carries a current of 4.04 A in the −y
direction.
(a) Determine the location of wire 3 on the x axis so
that when it carries a certain current (to be determined later)
each wire...
Two billiard balls are initially traveling toward each other at
speeds of 1.20 m/s for ball 1 and 4.65 m/s for ball 2. The balls
undergo an elastic, head-on collision. Find their final
velocities.
ball 1
magnitude
direction
---Select--- in the same direction it was initially going.
opposite the direction it was initially going.
ball 2
magnitude
direction
---Select--- in the same direction it was initially going.
opposite the direction it was initially going.
Question 1 (1 point)
We have two very long wires, which are parallel to each other
pointing to the right in front of us. The pair of wire is
horizontal. The wire closest to us carries a charge per unit length
of 1mC/m and the other the opposite charge. The two wires are 1m
apart and both move together at 100m/s along the wire to the right.
We are looking at what happens in the middle region of the two...