of current. 16. Increase the current and note the effect on the strength of the

Question

of current. 16. Increase the current and note the effect on the strength of the magnetic field, i e., attraction of the compass needle. State the relationship between the current through the coil and the strength of the magnetic field produced by the coil. n Questions 1. will pole of a magnet attract a piece of iron? Explain either what is happening inside the attracted piece of iron. Yes, either pole of a magnet will Jtred a piece of iron. The attracted of iron bned up Resolve the apparent dilemma. The north pole of a compass is attracted to the north pole of the earth, yet like poles repel. 3. A cyclotron is a device for accelerating charged particles in ever increasing circular orbits to high speeds. The charged

Explanation / Answer

in case of coil ,magnetic field at the center of the coil is B = mu_o*I/(2*R)

R is the radius of the coil

if we increase the current then magnetic field also increases

1) No,only one pole attracts and other pole repels,inside the attracted piece of iron all the atoms are lined up

2) compass shows the direction of geometric north or south

3) electric field increases speed and magnetic field holds them in a circular path

4) electromagnet is a variable magnet,we can change the magnetic field strength as per our usage,where as permanent magnet had a fixed magnetic field strength

if the coil is having large area of cross section ,then the field produced is Non-uniform field

5) In case of producing uniform magnetic field

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

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