Magnetic Force on a Moving Charge

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What is the direction of the magnetic force on a negative charge according to the right-hand rule?

Parallel to the magnetic field
Opposite to the direction of the force on a positive charge (correct)
The same direction as the force on a positive charge
Perpendicular to the velocity of the charge

What is the first step in applying the right-hand rule to determine the direction of the magnetic force?

Imagine turning the velocity vector towards the magnetic field
Your thumb points in the direction the force acts
Place the velocity and magnetic field vectors tail to tail (correct)
Curl the fingers of your right hand around the line perpendicular to the plane

What is the orientation of the force acting on a moving charge according to the right-hand rule?

Along the velocity of the charge
Perpendicular to the plane containing the velocity and magnetic field vectors (correct)
Along the magnetic field
Parallel to the plane containing the velocity and magnetic field vectors

What is the purpose of the right-hand rule in determining the direction of the magnetic force?

To determine the direction of the force on a positive charge (B) Signup and view all the answers

What happens when the velocity of the charge is parallel to the magnetic field?

The magnetic force is zero (D) Signup and view all the answers

What is the result of applying the right-hand rule to a moving charge in a cathode-ray tube?

The magnetic force creates an image on the screen (B) Signup and view all the answers

What happens when a bar-shaped permanent magnet is free to rotate?

One end points north and the other end points south (A) Signup and view all the answers

What is observed when a magnet is brought near an unmagnetized iron object?

The iron object is attracted to the magnet (C) Signup and view all the answers

What is the term for a single magnetic pole?

Magnetic monopole (D) Signup and view all the answers

What happens to a compass needle when an electric current runs through a nearby wire?

It deflects somewhat (B) Signup and view all the answers

What is the direction of the magnetic field vector at a point on a magnetic field line?

Tangent to the line (C) Signup and view all the answers

What is the symbol used to represent a magnetic field?

B (D) Signup and view all the answers

What is the direction of the magnetic field at a point in space?

The direction the compass needle tends to point (C) Signup and view all the answers

What is the unit of magnetic flux in the SI system?

Weber (D) Signup and view all the answers

What is the magnetic flux through any closed surface?

Zero (D) Signup and view all the answers

What is the direction of the magnetic field of the earth?

Not specified (B) Signup and view all the answers

What is the relationship between the magnetic field and magnetic flux?

Magnetic flux is proportional to the magnetic field (B) Signup and view all the answers

What is the direction of the force on a charged particle moving in a magnetic field?

Perpendicular to both the velocity and the magnetic field (D) Signup and view all the answers