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Category > Computer Science Posted 22 Nov 2017 My Price 10.00

resisters in series in these circuits combine them first.

HW 3 CH 4

Problems 4.2-4, 4.3-1, 4.4-3 use nodal analysis

Problems 4.5-4, 4.6-4, 4.7-2 use mesh current approach

Due Tuesday June 13

Helpful (I hope) hints:

If there are resisters in series in these circuits combine them first. for example 4.3-1 combine the 10 and 8 ohm resisters first then there is only one unknown (Vb where b is the node above the 2 amp source).

In 4.4-3 the current going through the 2K resister is 6ia. You can only write equation for left loop. 

In 4.5-4 using mesh current approach I came out with 2 equation (1 for each loop) and 3 unknowns. Using KCL at center top I was able to substitute for i3 in terms of i1 and i2. Now I have 2 equations and 2 unknown so I can solve.

In 4.6-4 I again had to use substitution because there is only 1 equation from right loop.using the direction i used in class - i1 = 20 mA + i2.

In 4.7-2 there is only 1 unknown ia. I got 1 equation from left side loop.

 

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SophiaPretty
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Status NEW Posted 22 Nov 2017 01:11 PM My Price 10.00

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