Concept explainers
Find the direction of the force on a negative charge for each diagram shown in Fig. 20-52 0:where (green) is the velocity of the charge and B (blue) is the direction of the magnetic field. (& means the vector points inward. © means it points outward, toward you.)
Part (a) To Determine:
Direction of force on the negative charge due to given direction magnetic field and velocity
Answer to Problem 12P
Solution:
No force
Explanation of Solution
Since direction of and are in same line but in opposite direction ()so force acting on charge particle is .No force acts on charge particle.
Part (b)To determine:
Direction of force on a negative charge due to given direction of magnetic field and velocity
Answer to Problem 12P
Solution:
Downward
Explanation of Solution
Since magnetic field is in outward direction and according to given direction of velocity using Fleming’s Left-Hand Rule direction of force comes in downward direction.
Part (c)To determine:
Direction of force on a charge particle
Answer to Problem 12P
Solution:
Upwards
Explanation of Solution
Since velocity in inwards to plane and with respect to direction of given magnetic field using Fleming’s Left-Hand Rule direction of force is in Upwards direction.
Part (d)To determine:
Direction of force on a negative charge particle
Answer to Problem 12P
Solution:
Inwards into the paper
Explanation of Solution
Since direction of velocity and magnetic field is perpendicular to each other represented by x axis and y axis respectively. According to the relation,
Direction of force on a negative charge particle can be identified by using this relation,
This indicates the inwards direction perpendicular to the plane containing
Part (e)To determine:
To determine the direction of force on a negative charge particle.
Answer to Problem 12P
Solution:
Left
Explanation of Solution
Since magnetic field is inwards direction and velocity is in downward direction so direction of force due to negative charge particle is in left side of .
Part (f)To determine:
To determine the direction of force on a negative charge particle.
Answer to Problem 12P
Solution:
Left
Explanation of Solution
Since velocity is in outward direction and magnetic field is in downward direction so direction of force due to negative charge particle is in left side of .
Chapter 20 Solutions
Physics: Principles with Applications
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