Homework Answers
Solution:
b ) Torque on the loop = I A B
where I = 30 mA = 0.030 A
Magnetic field = B = 0.4 T
Area = A = pi R^2 = pi (0.10)^2 = 0.0314 m^2
Torque = (0.030)(0.0314)(0.4) = 3.77 x10^-4 N m
A flat circular loop of wire of radius R carrying a current I is placed in...
A flat circular loop of wire of radius R carrying a current I is placed in a uniform magnetic field B that is directed in the plane of the current loop. What is the magnetic moment M of the loop? What is the magnitude of the torque acting on the loop? In which direction the loop will rotate under the influence of this torque?
Two solenoids are made of a total of 2000 turns of copper wire. Solenoid I is...
Two solenoids are made of a total of 2000 turns of copper wire. Solenoid I is 2 m long. While solenoid II is 1 m long. When equal currents are present in the two solenoid I to the magnetic field B_11 along the axis of solenoid II, B_y/B is. A. 4 B 2 C. 1 D. 1/2 E. 1/4 A square loop of wire lies in the plane of the page. A uniform constant magnetic field is directed into the...
Parts A-E refer to the following figure of a circular loop of conducting wire
1) Parts A-E refer to the following figure of a circular loop of conducting wire. In the figure, Region I has a uniform magnetic field in the direction shown and Region II has no magnetic field. a) If the loop moves to the right and starts to move into Region II, what is the direction of the induced current in the wire? Circle the correct response. a) Clockwise. b) Counterclockwise. c) There is no induced current. b) If the loop moves straight down and remains...
A rectangular loop has dimensions 0.505 m by 0.260 m. The loop is hinged along the...
A rectangular loop has dimensions 0.505 m by 0.260 m. The loop
is hinged along the x-axis and lies in the xy-plane (see the figure
below). A uniform magnetic field of 1.45 T is directed at an angle
of 40.0° with respect to the positive y-axis and lies parallel
everywhere to the yz-plane. The loop carries a current of 0.855 A
in the direction shown. (Ignore gravitation.)
(a) In what direction is magnetic force exerted on wire segment
ab?
direction...
Part A If the loop is in a uniform magnetic field with magnitude 0.48T in the...
Part A
If the loop is in a uniform magnetic field with magnitude 0.48T
in the + x-direction, find the magnitude of the torque
required to hold the loop in the position shown.
Part B
What is the direction of the torque required to hold the loop in
the position shown.
Part C
Repeat part A for the case in which the field is in the ?
z-direction.
Part D
What is the direction of the torque required to hold...
15-21 Proton 15. A proton traveling with speed venters a uniform clectric field of magnitude E,...
15-21
Proton 15. A proton traveling with speed venters a uniform clectric field of magnitude E, directed to the right and parallel to the plane of the page, as shown in the figure on the right. There is also a magnetic force on the proton that is in the direction opposite to that of the electric force Which of the following is a possible direction for the magnetic field? (A) Bottom of page (B) Top of page (C) To the...
Faraday’s Law and Induced EMF The figure displays a rectangular loop of wire with sides x...
Faraday’s Law and Induced EMF
The figure displays a rectangular loop of wire with sides x and
y placed in a region where a uniform magnetic field ! exists. The
resistance of the loop is R. Initially the field is perpendicular
to the plane of the loop and is directed out of the page. The loop
can rotate about either the vertical or horizontal axis, passing
through the midpoints of the opposite sides, as shown.
1. Which of the following...
Problem 6 A current i runs counterclockwise along the perimeter of an equilateral triangle whose sides...
Problem 6 A current i runs counterclockwise along the perimeter of an equilateral triangle whose sides are length a. The bottom of the triangle is horizontal. A uniform magnetic field, B, points to the right (horizontally.) (a) Draw a diagram showing the current, the field, and the force on each side of the triangle. (b) Find the magnitude of the force on each side and the net force on the entire triangular loop (c) Determine if there is a net...
A squared wire ( 10cm X 10cm) which carries a current of 10 A is placed...
A
squared wire ( 10cm X 10cm) which carries a current of 10 A is
placed in a uniform magnetic field of magnitude B=1.0 T, as shown
in the figure. Please find the net force exerted on the squared
wire
Part 2, Open-end questions (10 points each) 1, A squared wire (10cm X 10 cm) which carries a current of 10 A is placed in a uniform magnetic field of magnitude B=1.0 T, as shown in the figure. Please find...
1. An electron moves in a circular path in the magnetic field of an electromagnet. The...
1. An electron moves in a circular path in the magnetic field of an electromagnet. The plune of the electron's Sicular path is parallel to the smooth vole faces of the electromagnet. In the region where the electron is moving the magnetic field is uniform and has magnitude 0,50 T. The electron moves with a speed of 1.5 x 10 m/s. a. If someone could observe the electron from the north pole of the electromagnet, would the electron inove clockwise...
A flat circular loop of wire of radius R carrying a current I is placed in a uniform magnetic field B that is directed in the plane of the current loop. What is the magnetic moment M of the loop? What is the magnitude of the torque acting on the loop? In which direction the loop will rotate under the influence of this torque?
Two solenoids are made of a total of 2000 turns of copper wire. Solenoid I is 2 m long. While solenoid II is 1 m long. When equal currents are present in the two solenoid I to the magnetic field B_11 along the axis of solenoid II, B_y/B is. A. 4 B 2 C. 1 D. 1/2 E. 1/4 A square loop of wire lies in the plane of the page. A uniform constant magnetic field is directed into the...
A rectangular loop has dimensions 0.505 m by 0.260 m. The loop
is hinged along the x-axis and lies in the xy-plane (see the figure
below). A uniform magnetic field of 1.45 T is directed at an angle
of 40.0° with respect to the positive y-axis and lies parallel
everywhere to the yz-plane. The loop carries a current of 0.855 A
in the direction shown. (Ignore gravitation.)
(a) In what direction is magnetic force exerted on wire segment
ab?
direction...
Part A
If the loop is in a uniform magnetic field with magnitude 0.48T
in the + x-direction, find the magnitude of the torque
required to hold the loop in the position shown.
Part B
What is the direction of the torque required to hold the loop in
the position shown.
Part C
Repeat part A for the case in which the field is in the ?
z-direction.
Part D
What is the direction of the torque required to hold...
15-21
Proton 15. A proton traveling with speed venters a uniform clectric field of magnitude E, directed to the right and parallel to the plane of the page, as shown in the figure on the right. There is also a magnetic force on the proton that is in the direction opposite to that of the electric force Which of the following is a possible direction for the magnetic field? (A) Bottom of page (B) Top of page (C) To the...
Faraday’s Law and Induced EMF
The figure displays a rectangular loop of wire with sides x and
y placed in a region where a uniform magnetic field ! exists. The
resistance of the loop is R. Initially the field is perpendicular
to the plane of the loop and is directed out of the page. The loop
can rotate about either the vertical or horizontal axis, passing
through the midpoints of the opposite sides, as shown.
1. Which of the following...
Problem 6 A current i runs counterclockwise along the perimeter of an equilateral triangle whose sides are length a. The bottom of the triangle is horizontal. A uniform magnetic field, B, points to the right (horizontally.) (a) Draw a diagram showing the current, the field, and the force on each side of the triangle. (b) Find the magnitude of the force on each side and the net force on the entire triangular loop (c) Determine if there is a net...
A
squared wire ( 10cm X 10cm) which carries a current of 10 A is
placed in a uniform magnetic field of magnitude B=1.0 T, as shown
in the figure. Please find the net force exerted on the squared
wire
Part 2, Open-end questions (10 points each) 1, A squared wire (10cm X 10 cm) which carries a current of 10 A is placed in a uniform magnetic field of magnitude B=1.0 T, as shown in the figure. Please find...
1. An electron moves in a circular path in the magnetic field of an electromagnet. The plune of the electron's Sicular path is parallel to the smooth vole faces of the electromagnet. In the region where the electron is moving the magnetic field is uniform and has magnitude 0,50 T. The electron moves with a speed of 1.5 x 10 m/s. a. If someone could observe the electron from the north pole of the electromagnet, would the electron inove clockwise...
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