Chapter 3 Problems - Revision history

Benjamin.henry: /* Problem 3.1 */

2010-01-28T17:41:08Z

Problem 3.1

← Older revision		Revision as of 10:41, 28 January 2010
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	=== Problem 3.1===		=== Problem 3.1===
	[[Image:Diode.jpg\|300px\|thumb\|right\|Typical diode (drawing ~~redrawn~~ by Ben Henry)]]		[[Image:Diode.jpg\|300px\|thumb\|right\|Typical diode (drawing by Ben Henry)]]
	Show the graphical symbol and general design of a diode used in electrical schematic diagrams. Identify the anode and cathode to show the polarity of the diode.		Show the graphical symbol and general design of a diode used in electrical schematic diagrams. Identify the anode and cathode to show the polarity of the diode.

Benjamin.henry: /* Problem 3.7 */

2010-01-20T00:12:50Z

Problem 3.7

← Older revision		Revision as of 17:12, 19 January 2010
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	A Diode at room temperature (298.15K) is at rest. If 100mA is induced and the voltage is 0.65V. What is the temperature of the diode if after several minutes the voltage is 0.45V after the diode heats up.		A Diode at room temperature (298.15K) is at rest. If 100mA is induced and the voltage is 0.65V. What is the temperature of the diode if after several minutes the voltage is 0.45V after the diode heats up.

	"As the temperature increases, the knee voltage decreases by about 2mV/K."<ref><sup>Hambley, Allan. Electronics 2nd Edition. 2000. Page 133.</sup></ref>. Therefore we had a voltage drop of 0.65V-0.45V=0.20V With 0.002V/K, we take <math>\frac {0.20V}{0.002V/K} = 100K </math>. An estimated ~~tempterature~~ change is 100 Kelvin.		"As the temperature increases, the knee voltage decreases by about 2mV/K."<ref><sup>Hambley, Allan. Electronics 2nd Edition. 2000. Page 133.</sup></ref>. Therefore we had a voltage drop of 0.65V-0.45V=0.20V With 0.002V/K, we take <math>\frac {0.20V}{0.002V/K} = 100K </math>. An estimated temperature change is 100 Kelvin.

	=== Problem 3.13===		=== Problem 3.13===

Benjamin.henry: /* Problem 3.11 */

2010-01-20T00:12:04Z

Problem 3.11

← Older revision		Revision as of 17:12, 19 January 2010
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	"As the temperature increases, the knee voltage decreases by about 2mV/K."<ref><sup>Hambley, Allan. Electronics 2nd Edition. 2000. Page 133.</sup></ref>. Therefore we had a voltage drop of 0.65V-0.45V=0.20V With 0.002V/K, we take <math>\frac {0.20V}{0.002V/K} = 100K </math>. An estimated tempterature change is 100 Kelvin.		"As the temperature increases, the knee voltage decreases by about 2mV/K."<ref><sup>Hambley, Allan. Electronics 2nd Edition. 2000. Page 133.</sup></ref>. Therefore we had a voltage drop of 0.65V-0.45V=0.20V With 0.002V/K, we take <math>\frac {0.20V}{0.002V/K} = 100K </math>. An estimated tempterature change is 100 Kelvin.

	=== Problem 3.11===		=== Problem 3.13===

			=== Problem 3.15===

			<references/>

Benjamin.henry: /* Problem 3.7 */

2010-01-20T00:09:30Z

Problem 3.7

← Older revision		Revision as of 17:09, 19 January 2010
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	A Diode at room temperature (298.15K) is at rest. If 100mA is induced and the voltage is 0.65V. What is the temperature of the diode if after several minutes the voltage is 0.45V after the diode heats up.		A Diode at room temperature (298.15K) is at rest. If 100mA is induced and the voltage is 0.65V. What is the temperature of the diode if after several minutes the voltage is 0.45V after the diode heats up.

	"As the temperature increases, the knee voltage decreases by about 2mV/K."<ref><sup>Hambley, Allan. Electronics 2nd Edition. 2000. Page 133.</sup></ref> Therefore we had a voltage drop of 0.65V-0.45V=0.20V With 0.002V/K, we take <math>\frac {0.20V}{0.002V/K} = 100K </math>. An estimated tempterature change is 100 Kelvin.		"As the temperature increases, the knee voltage decreases by about 2mV/K."<ref><sup>Hambley, Allan. Electronics 2nd Edition. 2000. Page 133.</sup></ref>. Therefore we had a voltage drop of 0.65V-0.45V=0.20V With 0.002V/K, we take <math>\frac {0.20V}{0.002V/K} = 100K </math>. An estimated tempterature change is 100 Kelvin.

	=== Problem 3.11===		=== Problem 3.11===

Benjamin.henry: /* Problem 3.7 */

2010-01-20T00:09:10Z

Problem 3.7

← Older revision		Revision as of 17:09, 19 January 2010
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	=== Problem 3.7===		=== Problem 3.7===
	A Diode at room temperature (298.~~15k~~) is at rest. If 100mA is induced and the voltage is 0.~~6f5V~~. What is the temperature of the ~~dioad~~ if after several minutes the voltage is 0.45V after the diode heats up.		A Diode at room temperature (298.15K) is at rest. If 100mA is induced and the voltage is 0.65V. What is the temperature of the diode if after several minutes the voltage is 0.45V after the diode heats up.

			"As the temperature increases, the knee voltage decreases by about 2mV/K."<ref><sup>Hambley, Allan. Electronics 2nd Edition. 2000. Page 133.</sup></ref> Therefore we had a voltage drop of 0.65V-0.45V=0.20V With 0.002V/K, we take <math>\frac {0.20V}{0.002V/K} = 100K </math>. An estimated tempterature change is 100 Kelvin.

	=== Problem 3.11===		=== Problem 3.11===

Benjamin.henry: /* Problem 3.7 */

2010-01-19T23:57:00Z

Problem 3.7

← Older revision		Revision as of 16:57, 19 January 2010
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	=== Problem 3.7===		=== Problem 3.7===
			A Diode at room temperature (298.15k) is at rest. If 100mA is induced and the voltage is 0.6f5V. What is the temperature of the dioad if after several minutes the voltage is 0.45V after the diode heats up.

	=== Problem 3.11===		=== Problem 3.11===

Benjamin.henry: /* Problem 3.3 */

2010-01-19T23:38:13Z

Problem 3.3

← Older revision		Revision as of 16:38, 19 January 2010
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	Define a Zener diode, its other names, and how it is generally used. Show a graph of a volt/ampere properties for a 5.6-V Zener diode.		Define a Zener diode, its other names, and how it is generally used. Show a graph of a volt/ampere properties for a 5.6-V Zener diode.

	A Zener diode functions like a normal diode in the normal orientation. However, in the reverse polarity, that is with the band or cathode side to the positive input, the diode has what is called the Zener breakdown voltage. At this voltage the diode becomes conductive and allows current to flow through it.		A Zener diode functions like a normal diode in the normal orientation. However, in the reverse polarity, that is with the band or cathode side to the positive input, the diode has what is called the Zener breakdown voltage. At this voltage the diode becomes conductive and allows current to flow through it at manufactured specified voltages.

	=== Problem 3.7===		=== Problem 3.7===

	=== Problem 3.11===		=== Problem 3.11===

Benjamin.henry: /* Problem 3.1 */

2010-01-19T23:32:45Z

Problem 3.1

← Older revision		Revision as of 16:32, 19 January 2010
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	=== Problem 3.1===		=== Problem 3.1===
			[[Image:Diode.jpg\|300px\|thumb\|right\|Typical diode (drawing redrawn by Ben Henry)]]
	Show the graphical symbol of a diode used in electrical schematic diagrams. Identify the anode and cathode to show the polarity of the diode.		Show the graphical symbol and general design of a diode used in electrical schematic diagrams. Identify the anode and cathode to show the polarity of the diode.

	=== Problem 3.3===		=== Problem 3.3===

Benjamin.henry at 03:42, 18 January 2010

2010-01-18T03:42:12Z

← Older revision		Revision as of 20:42, 17 January 2010
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	===~~Scenario~~ 3.1===		=== Problem 3.1===

	Show the graphical symbol of a diode used in electrical schematic diagrams. Identify the anode and cathode to show the polarity of the diode.		Show the graphical symbol of a diode used in electrical schematic diagrams. Identify the anode and cathode to show the polarity of the diode.

	=== ~~Scenario~~ 3.3===		=== Problem 3.3===

	Define a Zener diode, its other names, and how it is generally used. Show a graph of a volt/ampere properties for a 5.6-V Zener diode.		Define a Zener diode, its other names, and how it is generally used. Show a graph of a volt/ampere properties for a 5.6-V Zener diode.
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	A Zener diode functions like a normal diode in the normal orientation. However, in the reverse polarity, that is with the band or cathode side to the positive input, the diode has what is called the Zener breakdown voltage. At this voltage the diode becomes conductive and allows current to flow through it.		A Zener diode functions like a normal diode in the normal orientation. However, in the reverse polarity, that is with the band or cathode side to the positive input, the diode has what is called the Zener breakdown voltage. At this voltage the diode becomes conductive and allows current to flow through it.

	=== ~~Scenario~~ 3.7===		=== Problem 3.7===

	=== ~~Scenario~~ 3.11===		=== Problem 3.11===

Benjamin.henry at 03:38, 18 January 2010

2010-01-18T03:38:35Z

← Older revision		Revision as of 20:38, 17 January 2010
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	===3.1===		===Scenario 3.1===

	Show the graphical symbol of a diode used in electrical schematic diagrams. Identify the anode and cathode to show the polarity of the diode.		Show the graphical symbol of a diode used in electrical schematic diagrams. Identify the anode and cathode to show the polarity of the diode.

	===3.3===		=== Scenario 3.3===

	Define a Zener diode, its other names, and how it is generally used. Show a graph of a volt/ampere properties for a 5.6-V Zener diode.		Define a Zener diode, its other names, and how it is generally used. Show a graph of a volt/ampere properties for a 5.6-V Zener diode.
Line 9:		Line 9:
	A Zener diode functions like a normal diode in the normal orientation. However, in the reverse polarity, that is with the band or cathode side to the positive input, the diode has what is called the Zener breakdown voltage. At this voltage the diode becomes conductive and allows current to flow through it.		A Zener diode functions like a normal diode in the normal orientation. However, in the reverse polarity, that is with the band or cathode side to the positive input, the diode has what is called the Zener breakdown voltage. At this voltage the diode becomes conductive and allows current to flow through it.

	===3.7===		=== Scenario 3.7===

	===3.11===		=== Scenario 3.11===