QUIZ ON DIELECTRICS
Test Your Knowledge of Dielectrics
Welcome to the Dielectrics Quiz! This quiz is designed to test your understanding of dielectric materials and their properties. Whether you're a student, teacher, or simply curious about the subject, this quiz will challenge you with a series of thoughtfully crafted questions.
- 10 engaging questions
- Multiple choice and checkbox formats
- Instant feedback on your answers
1. Molecules which tends to orient themselves in an external electric field are called:
(a) Non-Polar
(c) Ionic
(b) Polar
(d) All of the above
2. Electronic polarizability of an atom is proportional to:
(a) Radius
(c) (radius)3
(b) (radius)2
(d) (radius)1/2
3. The property of becoming electrically polarized when mechanical stress is applied is known as:
(a) Ferro-electric
(c) Pyro-electric
(b) Piezo-electric
(d) None of these
4. Dielectric loss occurs when dielectric is subjected to
(a) d.c voltage
(c) both a.c and d.c voltage
(b) a.c voltage
(d) none of these
5. The relaxation frequency of dipolar polarizability lies in
(a) micro-wave region
(c) UV
(b) infra-red
(d) visible
6.The insulating material should have the property
(a) low dielectic constant
(c) high dielectric strength
(b) low dielectric loss
(d) all of the above
7.In radio frequency circuit ,the capacitor use
(a) air dielectric
(b) mineral oil dielectric
(c) glass dielectric
(d) solid and liquid dielectric
8. Above curie temperature the hysteresis loop of a ferroelectric material reduces to:
(a) a straight line
(c) a point
(b) a circle
(d) a rectangle
9. Piezo-electricity is due to:
(a) increase in charges
(c) disappearance of charge
(b) decrease in charges
(d) distortion of charge symmetry
10.For a conductor subject to electric field displacement current density is negligible compared to conduction current density at frequencies:
(a) more than 10^15 c/s
(c) equal to 10^15 c/s
(b) less than 10^15 c/s
(d) none of the above
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