Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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3. For the circuit of Figure 3 when the switch is closed, determine all unknowns listed below.
Calculated a value of Rb to allow for saturation of the transistor and full illumination of the bulb.
Note that a pot may be used for Rs therefore the exact resistor value is OK. Assume VCE(sat) = 0.2V
+5V
Swi
Figure 3
??? 142
+25 V
K
0000
Light
Bulb
120
2N2222
B-200
Vb=_
Ve=
Ic=
Ib =
Rb=.
P Q1 =
P load =
expand button
Transcribed Image Text:3. For the circuit of Figure 3 when the switch is closed, determine all unknowns listed below. Calculated a value of Rb to allow for saturation of the transistor and full illumination of the bulb. Note that a pot may be used for Rs therefore the exact resistor value is OK. Assume VCE(sat) = 0.2V +5V Swi Figure 3 ??? 142 +25 V K 0000 Light Bulb 120 2N2222 B-200 Vb=_ Ve= Ic= Ib = Rb=. P Q1 = P load =
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