University Physics Young and Freedman Chapter 26 Concept Questions and solutions
Chapter 26: Prechapter Question
Q: Is it possible to connect several resistors with different resistors with different
resistances so that they all have the same potential difference?
If so, will the current be the
same through all
of the resistors?
A: If in parallel, the voltage across each is the same.
But because the current across each
is
different, the resistances are different.
1.
Suppose all 3 of the resistors shown in Fig. 26.1 have the same resistance, so R1 = R2 =
R3 = R.
Rank the four arrangements shown in parts (a) – (d) of Fig. 26.1 in order of their
equivalent resistance, from lowest to highest.
A: BDCA
2.
Subtract equation (1) from equation (2) in Example 26.6.
To which loop in Fig. 26.12
does this equation correspond?
Would this equation have simplified the solution of
Example 26.6?
A: c>b>d>a>c
3.
You want to measure the current through and the potential difference across the 2ohm
resistor shown in Fig. 26.12.
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 Spring '07
 Cutts
 Physics, Resistance, Potential difference, Electrical resistance, University Physics Young, 2ohm resistor

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