What is the direction of the induced current in the circular loop due to the cur

Question

What is the direction of the induced current in the circular loop due to the current shown in each part of Fig. 21-49? You have two parallel wires carrying currents in the same direction. What is the direction of the magnetic field at the position where I2 is located that is created by 11? You have two parallel currents with the same direction. What is the direction of the magnetic force due to J* that acts on I2? The rectangular loop shown in Fig. 21-46 is pushed into the magnetic field which points inward. In what direction is the induced current? If the resistance of the resistor in Fig. 21-48 is slowly decreased, what is the direction of the current induced in the small circular loop inside the larger loop?

Explanation / Answer

The Basic rules that will help u to do these problems are:

1. the induce current always tries to oppose the cause of its induction.(Lenz's Law)

2. when u hold the conductor with your right hand such that the thumb points in the direction of current the direction in which tha fingers curl give the direction of magnetic field.

3.when u curl the finger in such a way that it points in the direction the current flows in the loop the direction of thumb shows the direction of magnetic field

If field decreases then induced current increases it and vice versa.

In 1.a Using rule 2 the direction of magnetic field is upwards in the loop and aas the current is increasing hence induce current will try to reduce it and hence clockwise current by rule 3.

For the force part

F=I(L (cross) B)

hence direction can be found out.

I hope you will be able to do all the problems now.pls try and comment if you have any problems i will solve them all.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.