Let vov1 ... V5 be a path. We fix an integer i, 0

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Q2
Let vo v1 ... v5 be a path. We fix an integer i, 0 <i< 5.
Suppose that a person starts walking from Vị, and at every vertex
Vj, 0 < j< 5, with probability p continues to vj-1 and with
probability 1 - p continues to vi+1. Let A; be the event that the
person visits v5 before vo for the first time.
(1) Show that P(A;) = pP(A;-1) + (1 – p)F(A;+1), for 0 <
i < 5.
(2) Use (1) to compute P(A;), for p = 3, for every i E
{1,2, 3, 4}.
Q3
We connect 5 resistors in series, where the i-th resistor, for 0 <
i< 5, has the resistance R; = 2'-1 N and connect the ends to
al V battery. Compute the electric potential V (i) at a vertex v;
between the i-th and (i + 1)-st resistors for i = 1, 2, 3, 4, and
vertices at the ends for i = 0, 5. (We neglect the resistance of the
wire. Choosing the flow of the electric current in either direction
consistently with voltages is fine. )
Compare your answer to your answer to Q2 (2).
Transcribed Image Text:Q2 Let vo v1 ... v5 be a path. We fix an integer i, 0 <i< 5. Suppose that a person starts walking from Vị, and at every vertex Vj, 0 < j< 5, with probability p continues to vj-1 and with probability 1 - p continues to vi+1. Let A; be the event that the person visits v5 before vo for the first time. (1) Show that P(A;) = pP(A;-1) + (1 – p)F(A;+1), for 0 < i < 5. (2) Use (1) to compute P(A;), for p = 3, for every i E {1,2, 3, 4}. Q3 We connect 5 resistors in series, where the i-th resistor, for 0 < i< 5, has the resistance R; = 2'-1 N and connect the ends to al V battery. Compute the electric potential V (i) at a vertex v; between the i-th and (i + 1)-st resistors for i = 1, 2, 3, 4, and vertices at the ends for i = 0, 5. (We neglect the resistance of the wire. Choosing the flow of the electric current in either direction consistently with voltages is fine. ) Compare your answer to your answer to Q2 (2).
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