Suppose you are looking at two current loops in the plane of the page as shown i

Question

Suppose you are looking at two current loops in the plane of the page as shown in the figure. The switch S is closed in the left-hand coil. What is the direction of the induced current in the other loop right after the switch is closed? Why? What ts the situation after a very "long" time after the switch is closed? You are pushing the rectangular loop as is shown in the figure below. The magnetic field points into the page. What is the direction ts the induced current? Why? What is the direction of the force that you would feel? If you pushed on the loop more vigorously would the force you felt be bigger or smaller? Why? Three particles travel through a region of space where the magnetic field is out of the page, as shown in the figure below. What is the electric charge of each of the three particles, respectively? If one of the panicles were a neutron, would its trajectory be 1, 2, or 3?

Explanation / Answer

a.)

1 . counter clockwise

as induce current will resist the change

2.) No change in current

as no change in current in other loop hence no change in flux so no induce emf

b.)

1.) counter clockwise

as flux is increasing in circuit hence it will resist it so counter clockwise current will flow into it

2.) opposoite to the direction of applied force

3. bigger

F = QVB

more the velocity more the magnetic force will produce

c.)l +ve, -ve, neutral

2.)2 trajectory

because it is not deviated in electric filed

F = QVB , as Q=0 force become zero hence it will not deviate

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