3) (2 pts) IP electrons move through a wire to the right, what direction is the
ID: 2039072 • Letter: 3
Question
3) (2 pts) IP electrons move through a wire to the right, what direction is the conventional current flow? 6(2 pts) Which one of the following correctly lists two ways to decrease the resistance from a single piece of wire? (a) increase the length of the wire or increase the area across the wire (b) increase the length of the wire or decrease the area across the wire (c) decrease the length of the wire or increase the area across the wire (d) decrease the length of the wire or decrease the area across the wire (2 pts each) 7a) Which of the following statements is Kirchhoff's current rule 7b) Which of the following statements is Kirchhoff's voltage rule A) total voltage into a junction must equal the total voltage out of the junction B) the sum of the voltages around a loop must equal zero C) total current into a junction must equal the total current out of the junction D) the sum of the currents around a loop must equal zero 8)(2 pts) The two resistors in the circuit shown to the right are: a) in series b) in parallel c) in combinationExplanation / Answer
Ans5.
current always flow through the opposite of electrons moving
Hence the direction of current will flow in the left direction.
ANS 06
R = row * L/ A
From above relation we can easly find that resistanc eof the wire is directely propertional to the lengnth and invesly of the area of cross section.
Hence resistance can decrease by decreasing the length and increasing the cross sectional area.
Option C is right ans
7 (a)
option C total current into a junction must equal the total current out of the junction
7(B)
Option (B) the sum of the voltages around a loop must equal zero
ans 8
Both resistance are connected in series because there same current flowing through it.
Option A.
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