Q1. A ferrite core has less eddy current loss than an iron core, because ferrites have_________.

Q2. Mercury as an electric contact material is

Q3. The property characteristic of ferroelectric materials is

Q4. In semiconductor strain gauges, what happens when a tensile strain is applied?

Q5. When a ferromagnetic substance is magnetized, there are small changes in dimensions. The phenomenon is called

Q6. According to free electron theory, electron in a metal are subjected to

Q7. The material that are weakly magnetized in the direction opposite to the applied magnetic field are called__________.

Q8. Magnetically hard materials do not possess which of the following characteristics?

Q9. The soft magnetic material have ___________.

Q10. On which of the following factors does hysteresis loss not depend?