Physics 205B Quiz 3, spring semester 2014
Cuesta College, San Luis Obispo, CA
Cf. Giambattista/Richardson/Richardson, Physics, 2/e, Conceptual Question 16.14
A Physics 205B student touches an uncharged metal rod to an isolated, positively charged conducting sphere. As a result electrons are __________ the rod, such that the rod becomes __________ charged.
(A) removed from; positively.
(B) removed from; negatively.
(C) added to; positively.
(D) added to; negatively.
(E) neither transferred to/from; neutrally.
(F) (Not enough information is given.)
Correct answer (highlight to unhide): (A)
Positive charge will be transferred from the positively charged conducting sphere to the initially neutral metal rod. This means that negatively charged electrons will be transferred from the metal rod (making it positively charged) to the conducing sphere (reducing the amount of its positive charge).
Sections 30882, 30883
Exam code: quiz03cDvD
(A) : 24 students
(B) : 6 students
(C) : 4 students
(D) : 5 students
(E) : 1 student
(F) : 0 students
Success level: 60%
Discrimination index (Aubrecht & Aubrecht, 1983): –0.25
Showing posts with label charge transfer. Show all posts
Showing posts with label charge transfer. Show all posts
20100305
Physics quiz question: electron charge transfer
Physics 205B Quiz 3, spring semester 2010
Cuesta College, San Luis Obispo, CA
Cf. Giambattista/Richardson/Richardson, Physics, 2/e, Conceptual Question 16.1, Problem 16.5
A Physics 205B student touches a positively charged metal rod to an isolated, uncharged conducting sphere. As a result electrons are __________ the sphere, such that the sphere becomes __________ charged.
(A) removed from; positively.
(B) removed from; negatively.
(C) added to; positively.
(D) added to; negatively.
(E) neither transferred to/from; neutrally.
Correct answer (highlight to unhide): (A)
Positive charge will be transferred from the metal rod to the initially neutral conducting sphere, evenly distributing between the two objects such that they are both positive. This means that negatively charged electrons were transferred from the conducting sphere (making it positive) to the metal rod (reducing the amount of its positive charge).
Section 31988
Exam code: quiz03f1Lm
(A) : 7 students
(B) : 0 students
(C) : 1 student
(D) : 3 students
(E) : 0 students
Success level: 63%
Discrimination index (Aubrecht & Aubrecht, 1983): 0.33
Cuesta College, San Luis Obispo, CA
Cf. Giambattista/Richardson/Richardson, Physics, 2/e, Conceptual Question 16.1, Problem 16.5
A Physics 205B student touches a positively charged metal rod to an isolated, uncharged conducting sphere. As a result electrons are __________ the sphere, such that the sphere becomes __________ charged.
(A) removed from; positively.
(B) removed from; negatively.
(C) added to; positively.
(D) added to; negatively.
(E) neither transferred to/from; neutrally.
Correct answer (highlight to unhide): (A)
Positive charge will be transferred from the metal rod to the initially neutral conducting sphere, evenly distributing between the two objects such that they are both positive. This means that negatively charged electrons were transferred from the conducting sphere (making it positive) to the metal rod (reducing the amount of its positive charge).
Section 31988
Exam code: quiz03f1Lm
(A) : 7 students
(B) : 0 students
(C) : 1 student
(D) : 3 students
(E) : 0 students
Success level: 63%
Discrimination index (Aubrecht & Aubrecht, 1983): 0.33
Subscribe to:
Posts (Atom)