My Report

Engineering Physics II Practice Test 7


Correct Answer: 2 points | Wrong: -1 point
Grades: A* (100% score) | A (80%-99%) | B (60%-80%) | C (40%-60%) | D (0%-40%)
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1. The relative dielectric constant of polystyrene is 2.5. What is the polarization produced when 0.5 mm thick sheet of polystyrene is subjected to 220 V?

2. Which method can be used to distinguish between the two types of carriers?

3. What are the two types of dielectrics?

4. Dielectrics which show spontaneous polarization are called as _____________

5. In which category of polarization Electric field is used to develop a net dipole moment in dipolar substances?

6. Polarization in Ferroelectric materials is ___________

7. No regular cubic lattice can exhibit piezoelectricity.

8. The presence of porosity in dielectrics is detrimental for higher dielectric strength.

9. The symmetry of BaTiO3 in ferroelectric form is _________

10. In a water drop of radius 1 mm all the molecular dipole points are in the same direction. If the dipole moment of a water molecule is 6 X 10-30 m, the polarization in the water drop is _____________


 

Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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