Question

a) The magnetic field points out of the page and increasing. Explain.

In figure 5, determine the direction of the induced current. Use Lenz's law and explain your choice of direction in each case. Write clockwise or counterclockwise for the direction. A correct direction with no explanations receives only one point. ta 0 Figure 5:

b) The magnetic field points out of the page and is constant. Explain.

c) The magnetic field points out of the page and decreasing. Explain

Answer 1

Solutions We have to use two things fleust lenz's low acc. to which ent is induced thout such of it its opbases the cause production. Second hand eright thumb rule make your thumb directed calary magnetic field the direction of curling of fingers is the direction of current in the loop. a into (a) to oppose this magnetic this magnetic field therease magnetic field is requered going the page Copposite to the direction of ise) then by ereight direction of induced current weu clockwise hound rule be but the is Mere magnetic field is constant current only induced when this field magnitud changes i.e. depends reo rate of change. so e.ma current weu be induced. on ho, en is (6) Hers to oppese this magnetic field change i magustic field reruired going out of the page (in the direction of decrease) then by right hand hound rule direction of Induced will be anti-clockwise current

I hope it will help you if still having any query related to it then feel free to comment. Plzz rate if u like the answer. Thank you.

Solution:

We have to use two things

first lenz's law acc. to which emf is induced such that it opposes the cause of its production.

Second right hand thumb rule make your thumb directed along magnetic field the direction of curling of fingers is the direction of current in the loop.

(a) to oppose this magnetic field increase a magnetic field is required going the page ( opposite to the direction of increase) then by right hand rule direction of induced current will be clockwise.

(b) Here magnetic field is constant but the current is only induced when this field magnitude changes i.e. depends on rate of change. So no emf or current will be induced.

(c) Here to oppose this magnetic field change a magnetic field required going out of the page (in the direction of decrease) then by right hand rule direction of Induced current will be anti-clockwise.