PH115 LAB FINAL EXAM QUESTIONS AND ANSWERS 100% CORRECT

PH115 LAB FINAL EXAM QUESTIONS AND ANSWERS
100% CORRECT



The breakdown voltage of a gas depends on its

A) Temperature

B) Density

C) Partial Pressure

D) All of these - ANSWER D




Inductive charging is due to

A) None of these

B) The size of the electron

C) The Coulomb force

D) The transfer of charges from one medium to the other - ANSWER C




The charges on a randomly-shaped conductor always reside

A) At the surface

B) Depends on the material

C) At its center - ANSWER A




The electron is less massive than the proton

,A) False

B) True - ANSWER B




The neutron is much less massive than the proton




A) False

B) True - ANSWER A




An electrostatic luminous spark is a result of




A) none of these

B) electron attraction

C) the photons produced by the electric field

D) collisions between ions or electrons and air molecules - ANSWER D




A Faraday cage can be constructed from




A) A non-conductor

B) A semi-conductor

C) none of these

D) An insulator - ANSWER C

, Inside a Faraday cage the electric field is




A) Zero

B) Can have any value - ANSWER A




A photon has




A) Negative charge

B) Positive charge

C) Depends on the type of the photon

D) No charge - ANSWER D




The typical radius of an atom is closer to




A) 10^(-15) m

B) 10^(-3) m

C) 10^(1) m - ANSWER A




At any given time there are electrons in the air that we breathe