Copy and Edit

Biophysics MCQs Part 3 PMU

Description

Just made up questions. Based on essays
Med Student
Quiz by Med Student , updated more than 1 year ago
Med Student
Created by Med Student over 8 years ago
100
5
0

Resource summary

Question 1

Question
Materials which have no free charges are called
Answer
  • Dielectrics
  • Transistors
  • Polarisers

Question 2

Question
When a dielectric is placed in an electric field, there is a displacement of the electron cloud relative to the nucleus(the inner circle). This refers to
Answer
  • Electric polarisation
  • Ionic polarisation
  • Dipolar polarisation
  • Macrostructural polarisation

Question 3

Question
Ionic polarisation
Answer
  • results from separation of +ve and –ve ions which are held together by ionic bonds
  • results when free polar molecules are subjected to an electrical field, they orientate themselves along the field
  • results when electrical field is applied to a large structure i.e.a cell, the free ions etc

Question 4

Question
When free polar molecules are subjected to an electrical field, they orientate themselves along the field this is known as
Answer
  • Ionic polarisation
  • Dipolar polarisation
  • Hyperpolarisation
  • Electric polarisation

Question 5

Question
Macro structural polarisation
Answer
  • electrical field is applied to a large structure i.e.a cell, the free ions etc
  • on surfaces with double electrical layer when an external electrical field causes absorptionand diffusion on opposite sides of the ions in the external medium
  • when a dielectric is placed in an electric field, there is a displacement of the electron cloud relative to the nucleus(the inner circle).

Question 6

Question
Relaxation time is (10^-16)-(10^-14) for
Answer
  • Electric polarisation
  • Dipolar Polarisation
  • Superficial polarisation

Question 7

Question
Relaxation time is (10^-3)-(1 sec) for
Answer
  • Superficial potential
  • Electric Potential
  • Ionic Potential

Question 8

Question
The measure of the opposition that a circuit presents to a current when a voltage is applied
Answer
  • Electric Impedence
  • Electric Resistance
  • Ohms Resistances
Show full summary Hide full summary

Want to create your own Quizzes for free with GoConqr? Learn more.

Similar

Biophysics MCQs PMU 1st YR/2nd Sem
Med Student
Biophysics MCQs Part 2 PMU- 1st YR/2nd Sem
Med Student
Biophysics Equations and Formulas PMU 1stYR/2nd Sem
Med Student
Cell Physiology and General Physiology of Excitable Tissues- Physiology PMU 2nd Year
Med Student
General Physiology of the Nervous System Physiology PMU 2nd Year
Med Student
Blood MCQs Physiology PMU 2nd Year
Med Student
General Pathoanatomy Final MCQs (111-200)- 3rd Year- PMU
Med Student
Muscles- Physiology MCQs PMU- 2nd Year
Med Student
General Pathoanatomy Final MCQs (201-300)- 3rd Year- PMU
Med Student
The Gastrointestinal System- Physiology- PMU
Med Student
Biochemistry MCQ Exam 1- PMU 2nd Year
Med Student
Browse Library