Cuesta College, San Luis Obispo, CA
Cf. Giambattista/Richardson/Richardson, Physics, 2/e, Comprehensive Problem 18.65(b).
An ideal 16.0 V emf source is connected to a 15 Ω resistor, two ideal ammeters, and two 2.2 Ω light bulbs, as shown at right. The __________ ammeter has a higher reading?(A) left.
(B) right.
(C) (There is a tie, with both ammeters reading zero.)
(D) (There is a tie, with both ammeters reading non-zero values.)
Correct answer (highlight to unhide): (B)
Due to Kirchhoff's junction rule, the current flowing through the right light bulb is the sum of the two separate currents flowing through the 15 Ω resistor and flowing through the left light bulb.
Student responses
Section 30822
Exam code: quiz05t4Uo
(A) : 0 students
(B) : 8 students
(C) : 0 students
(D) : 0 students
Success level: 100%
Discrimination index (Aubrecht & Aubrecht, 1983): 0
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