Solved

A Piece of Soft Iron Is Placed in a Solenoid

Question 42

Multiple Choice

A piece of soft iron is placed in a solenoid increasing the magnetic field in an arrangement that can be switched on and off. Such a device is called

A) an electromagnet.
B) an electrosolenoid.
C) a permanent magnet.
D) a ferromagnet.
E) a hysteresis loop.

Related Questions

Q21: FIGURE 22-8 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6213/.jpg" alt="FIGURE 22-8

Q37: Describe ferromagnetism.

Q37: In ferromagnetic materials the small regions that

Q40: FIGURE 28-8 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3817/.jpg" alt="FIGURE 28-8

Q41: The field outside a solenoid behaves like

Q43: The ampere is defined<br>A)as a coulomb-second.<br>B)as 4π

Q44: Two long parallel wires carry currents of

Q45: A straight wire carries a 12-A current

Q47: FIGURE 28-10 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB3817/.jpg" alt="FIGURE 28-10

Q66: Describe diamagnetism.