Homework Answers
We have to use right hand rule for this. According to this, if we curl fingers of our right hand in the direction of the magnetic field, the thumb provides the direction of current. Here using right hand rule we find that the direction of current is to the left of the page.
Option c is correct.
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A magnetic field is created around a straight current carrying wire as diagrammed below with the...
Along straight wire cames a current directed upwards, what is the direction of the magnetic field...
Along straight wire cames a current directed upwards, what is the direction of the magnetic field to the right of the wire? toward the right side of the screen toward the left of the screen toward the top of the screen toward the bottom of the screen to screen out of scroon Question 18 A long straight wire carries a current directed downwards, what is the direction of the magnetic field to the left of the wire? toward the right...
Within a uniform magnetic field B, a straight wire is carrying current in the direction shown...
Within a uniform magnetic field B, a straight wire is carrying current in the direction shown in this figure. The direction of this uniform magnetic field is denoted by the blue dots. (Think about what these dots means. This was taught in my lectures.) B. What is the direction of the magnetic force acting on this current-carrying wire? The magnetic force points: A to the right: B. out of the page; C. Into the page: D. to the left; O...
4.A long, straight wire carrying a current moving upward is placed in a magnetic field produced...
4.A long, straight wire carrying a current moving upward is placed in a magnetic field produced by magnets, what is the direction of the magnetic force acting on the wire? 2 % (A) right, (B) left, (C) upward, (D) downward, (E) into the page, (F) out of the page, (G) Clockwise (H) Counter-clockwise.
The picture below shows a cross-sectional view through three long straight current-carrying wires, which are each...
The picture below shows a cross-sectional view through three
long straight current-carrying wires, which are each carrying
current perpendicular to the page (or the screen). In this problem,
use these values:
the distance: a = 60.0 cm;
the current: I = 3.50 amps.
(a) Calculate the net force per unit length acting on the wire
that carries a current of 3I out of the page,
at x = +2a.
(b) Calculate the net magnetic field at x =
+a. Use a...
The diagram below shows a straight wire carrying a conventional current into the page. The wire...
The diagram below shows a straight wire carrying a conventional
current into the page. The wire is between the poles of a permanent
magnet. The direction of the magnetic force exerted on the wire is:
A. upward. B. to the left. C. downward D. into the page. E. to the
right.
Answer key says C. downward; please explain. Thanks!
7. The diagram below shows a straight wire carrying a conventional current into the page. The wire is between the poles...
In what direction is the magnetic force on a current-carrying wire if the current flows to...
In what direction is the magnetic force on a current-carrying wire if the current flows to the left (-x) and the uniform magnetic field points out of the page? a. right b. left c. up d. down e. into the page f. out of the page
A long, straight wire carrying a current I1 is placed on a horizontal table in front...
A long, straight wire carrying a current I1 is placed on a horizontal table in front of you and the direction of the current points +x axis. The magnetic field produced by the current I1 at a point 5 cm above the wire is 0.2 T. A second parallel wire carrying a current I2 = 3I1 is placed 10 cm above the first wire and the direction of the current also points +x axis. What is the direction of the...
1. Where a single straight long current carrying wire perpendicular to the plane of the page...
1. Where a single straight long current carrying wire
perpendicular to the plane of the page carries a current out of the
page as shown, passing through the origin. The value of the current
is I=30A.
The magnetic field at the
point (-3,0)m is directed
a in the positive x-direction.
b in the negative x-direction.
c in the positive y-direction.
d in the negative y-direction.
e none of the above.
X
A uniform magnetic field of magnitude 25 points to the right. A 2.0-m-long wire, carrying 20...
A uniform magnetic field of magnitude 25 points to the right. A 2.0-m-long wire, carrying 20 A, is placed at an angle of to the magnetic field, as shown in the figure. 30° What is the direction of the magnetic force on the wire? The magnetic force points O A to the right; OB out of the page: Cinto the page: OD to the left; E upward; OF downward
9. A current carrying wire is placed in the uniform magnetic field as shown in the...
9. A current carrying wire is placed in the uniform magnetic field as shown in the figure for problem! The magnetic force on the wire is pointing to the left 19) The magnetic field is pointing a) out of the page b) to the left 20) If the current in the wire decreases by a factor of two, the force a) increases by a b) decreases by a c) decreases by a factor of two d) into the page c)...
Along straight wire cames a current directed upwards, what is the direction of the magnetic field to the right of the wire? toward the right side of the screen toward the left of the screen toward the top of the screen toward the bottom of the screen to screen out of scroon Question 18 A long straight wire carries a current directed downwards, what is the direction of the magnetic field to the left of the wire? toward the right...
Within a uniform magnetic field B, a straight wire is carrying current in the direction shown in this figure. The direction of this uniform magnetic field is denoted by the blue dots. (Think about what these dots means. This was taught in my lectures.) B. What is the direction of the magnetic force acting on this current-carrying wire? The magnetic force points: A to the right: B. out of the page; C. Into the page: D. to the left; O...
4.A long, straight wire carrying a current moving upward is placed in a magnetic field produced by magnets, what is the direction of the magnetic force acting on the wire? 2 % (A) right, (B) left, (C) upward, (D) downward, (E) into the page, (F) out of the page, (G) Clockwise (H) Counter-clockwise.
The picture below shows a cross-sectional view through three
long straight current-carrying wires, which are each carrying
current perpendicular to the page (or the screen). In this problem,
use these values:
the distance: a = 60.0 cm;
the current: I = 3.50 amps.
(a) Calculate the net force per unit length acting on the wire
that carries a current of 3I out of the page,
at x = +2a.
(b) Calculate the net magnetic field at x =
+a. Use a...
The diagram below shows a straight wire carrying a conventional
current into the page. The wire is between the poles of a permanent
magnet. The direction of the magnetic force exerted on the wire is:
A. upward. B. to the left. C. downward D. into the page. E. to the
right.
Answer key says C. downward; please explain. Thanks!
7. The diagram below shows a straight wire carrying a conventional current into the page. The wire is between the poles...
1. Where a single straight long current carrying wire
perpendicular to the plane of the page carries a current out of the
page as shown, passing through the origin. The value of the current
is I=30A.
The magnetic field at the
point (-3,0)m is directed
a in the positive x-direction.
b in the negative x-direction.
c in the positive y-direction.
d in the negative y-direction.
e none of the above.
X
A uniform magnetic field of magnitude 25 points to the right. A 2.0-m-long wire, carrying 20 A, is placed at an angle of to the magnetic field, as shown in the figure. 30° What is the direction of the magnetic force on the wire? The magnetic force points O A to the right; OB out of the page: Cinto the page: OD to the left; E upward; OF downward
9. A current carrying wire is placed in the uniform magnetic field as shown in the figure for problem! The magnetic force on the wire is pointing to the left 19) The magnetic field is pointing a) out of the page b) to the left 20) If the current in the wire decreases by a factor of two, the force a) increases by a b) decreases by a c) decreases by a factor of two d) into the page c)...
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