Circuit Analysis Ch.2

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Circuit Analysis Ch.2 HW

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1
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<p>Find the hot resistance of a light bulb rated 45 W, 120 V.</p>

Find the hot resistance of a light bulb rated 45 W, 120 V.

320 ohms

<p>320 ohms</p>
2
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<p><span>A bar of silicon is 4 cm long with a circular cross section. If the resistance of the bar is 310 Ω at room temperature, what is the cross-sectional radius of the bar?</span></p>

A bar of silicon is 4 cm long with a circular cross section. If the resistance of the bar is 310 Ω at room temperature, what is the cross-sectional radius of the bar?

3.07 cm

<p>3.07 cm</p>
3
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<p><span>Consider the circuit in the given figure. Assume R1 = 150 and R2 = 260 Ω. Calculate current i in the given figure when the switch is in position 1.</span></p>

Consider the circuit in the given figure. Assume R1 = 150 and R2 = 260 Ω. Calculate current i in the given figure when the switch is in position 1.

267 mA

<p>267 mA</p>
4
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<p><span>For the network graph shown in the given figure, find the number of nodes, branches, and independent loops.</span></p>

For the network graph shown in the given figure, find the number of nodes, branches, and independent loops.

6 nodes, 9 branches, 4 loops

5
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<p><span>Determine the number of branches and nodes in the given circuit. </span></p>

Determine the number of branches and nodes in the given circuit.

6
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<p><span>All resistors (R) in the given figure are 4 Ω each. Find Req.</span></p>

All resistors (R) in the given figure are 4 Ω each. Find Req.

12 ohms

<p>12 ohms</p>
7
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9
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10
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