Determine the direction of the force (if any) that will act on the charge in eac

Question

Determine the direction of the force (if any) that will act on the charge in each of the following situations. A positive charge within an electric field that points to the right A negative charge within an electric field that points upward. A positive charge moving out of the screen in a magnetic field that points upward. A negative charge moving into the screen in a magnetic field that points to the ight. A positive charge moving downward in an electric field that points out of the screen. A negative charge moving to the left in a magnetic field that points to the left. downwardupwardinto the screen to the right zero force to the left out of the screen

Explanation / Answer

The direction of an electrical field at a point is the same as the direction of the electrical force acting on a positive test charge at that point. So, for positive charge, the direction of field and force is same. For negative charge it is opposite.

1) to the right

2) downward

Determined using the right hand rule.

The right hand rule states that: to determine the direction of the magnetic force on a positive moving charge, ƒ, point the thumb of the right hand in the direction of v, the fingers in the direction of B, and a perpendicular to the palm points in the direction of F.

Opposite for negative charge.

3) to the left

4) upward

5) not sure

6) no force acting since the angle between B and v is 0.

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