Question

2) A positive charge is moving to the right and experiences an upward magnetic force, as shown in the figure. In which direction must the magnetic field have a component? A) to the right B) to the left C) upward D) out of the page E) into the page 3) A charged particle is injected into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field lines. Ignoring the particle's weight, the particle will A) move in a straight line. B) follow a spiral path. C) move along a parabolic path. D) follow a circular path. 4) An electron is moving to the right, as shown in the figure. Suddenly it encounters uniform magnetic field pointing out of the page. Which one of the three paths shown will it follow in the field? A) path a B) path b C) path c

          2) A positive charge is moving to the right and experiences an upward magnetic force, as shown in the figure. In which direction must the magnetic field have a component?

A) to the right
B) to the left
C) upward
D) out of the page
E) into the page

3) A charged particle is injected into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field lines. Ignoring the particle's weight, the particle will
A) move in a straight line.
B) follow a spiral path.
C) move along a parabolic path.
D) follow a circular path.

4) An electron is moving to the right, as shown in the figure. Suddenly it encounters uniform magnetic field pointing out of the page. Which one of the three paths shown will it follow in the field?

A) path a
B) path b
C) path c

Show more…

2) A positive charge is moving to the right and experiences an upward magnetic force, as shown in the figure. In which direction must the magnetic field have a component?

A) to the right
B) to the left
C) upward
D) out of the page
E) into the page

3) A charged particle is injected into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field lines. Ignoring the particle's weight, the particle will
A) move in a straight line.
B) follow a spiral path.
C) move along a parabolic path.
D) follow a circular path.

4) An electron is moving to the right, as shown in the figure. Suddenly it encounters uniform magnetic field pointing out of the page. Which one of the three paths shown will it follow in the field?

A) path a
B) path b
C) path c

Added by Brian S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Maitreya E

04/19/2022

Step 1

Using Fleming's left hand rule, we can determine that the magnetic field must have a component out of the page. Show more…

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2) A positive charge is moving to the right and experiences an upward magnetic force, as shown in the figure. In which direction must the magnetic field have a component? A) to the right B) to the left C) upward D) out of the page E) into the page 3) A charged particle is injected into a uniform magnetic field such that its velocity vector is perpendicular to the magnetic field lines. Ignoring the particle's weight, the particle will A) move in a straight line. B) follow a spiral path. C) move along a parabolic path. D) follow a circular path. 4) An electron is moving to the right, as shown in the figure. Suddenly it encounters uniform magnetic field pointing out of the page. Which one of the three paths shown will it follow in the field? A) path a B) path b C) path c

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Transcript

00:01 Hello.

00:02 So for the first question a, given to us in the question, it is given to us that a positive charge is moving to the right.

00:11 Okay.

00:12 So that is the velocity is in this direction of the positive charge and the force is acting in the upward direction.

00:19 Okay.

00:20 This is the figure given to us in the question.

00:23 Okay.

00:24 Now if a positive charge is moving in this direction, then current must be flowing.

00:31 In the exact opposite direction.

00:33 Why? because current is constituted by the flow of negative charges or electrons.

00:39 Okay.

00:40 So if the positive charge is moving in this direction, then the current will flow in the opposite direction.

00:46 So let's draw that.

00:49 So this is the direction of flow of the electric current.

00:53 Now, in order to find the direction of the magnetic field will be using fleming's left hand road.

01:00 Okay.

01:01 Fleming's.

01:05 Fleming's left hand rolled.

01:17 So fleming's left hand rule states that if we arrange our thumb, forefinger and middle finger of the left hand perpendicular to each other, then the thumb points towards the direction of the magnetic force, the forefinger points towards the direction of the magnetic field and the middle finger points towards the direction of the current.

01:40 Now if we use the same rule here, then we can see that our forefinger will be pointing out of the page, okay, or out of the screen.

01:52 So our answer would be option c, out of the page.

01:58 Out of the page.

02:06 Now for the second part of the question, it is given to us that a body, sorry, an attached part of the question...

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