Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Textbook Question
Chapter 17, Problem 29P
The
- Does the depletion region narrow or widen?
- Does the resistance of the channel increase or decrease?
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The VGS of a p -channel JFET is increased from 1 V to 3 V.
(a) Does the depletion region narrow or widen?
(b) Does the resistance of the channel increase or decrease?
The Vos of P-channel JFET is increas ed from 1 V
to 3V.
O Does the depletion region narow or widen?
O Does the resistance of the channel increase
or decrease?
During Forward blocking mode in SCR
O a.
leakage current flows from anode to cathode
Ob.
leakage current does not flow
Oc.
leakage current flows from cathode to anode
d.
leakage current flows from gate to anode
Chapter 17 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 17 - In a bipolar transistor, if the base-emitter...Ch. 17 - When a transistor is saturated. an increase in...Ch. 17 - Prob. 3TFQCh. 17 - The power gain of a CC amplifier is the same as...Ch. 17 - A class B amplifier is more efficient than a class...Ch. 17 - A JFET is always operated with the gate-source...Ch. 17 - Prob. 7TFQCh. 17 - The transconductance of a FET is the ratio of ac...Ch. 17 - Prob. 9TFQCh. 17 - The input to a feedback oscillator is only the...
Ch. 17 - The n-type regions in an npn bipolar junction...Ch. 17 - The n-region in a pnp transistor is the base...Ch. 17 - Prob. 3STCh. 17 - Prob. 4STCh. 17 - Prob. 5STCh. 17 - Alpha () is the ratio of collector current to...Ch. 17 - If the beta of a certain transistor operating in...Ch. 17 - If the base current of a transistor operating in...Ch. 17 - Prob. 9STCh. 17 - When the gate-to-source voltage of an n-channel...Ch. 17 - When a negative gate-to-source voltage is applied...Ch. 17 - Prob. 12STCh. 17 - If the capacitor from emitter to ground in a CE...Ch. 17 - When the collector resistor in a CE amplifier is...Ch. 17 - The input resistance of a CE amplifier is affected...Ch. 17 - The output signal of a CE amplifier is always in...Ch. 17 - The output signal of a common-collector amplifier...Ch. 17 - The largest theoretical voltage gain obtainable...Ch. 17 - In a class A amplifier, the output signal is...Ch. 17 - A class A amplifier conducts for 90 of input cycle...Ch. 17 - Prob. 21STCh. 17 - Feedback oscillators operate on the principle of...Ch. 17 - What is the value of IC for IE=5.34mA and IB=475A?Ch. 17 - Prob. 2PCh. 17 - Prob. 3PCh. 17 - In a certain transistor circuit, the base current...Ch. 17 - Find IB,IE, and in Figure 17-70 given that DC=0.98...Ch. 17 - The transistor in Figure 17-70 is replaced with...Ch. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Determine IB,IC, and VC in Figure 17-72.Ch. 17 - For the circuit in Figure 17-73, find VB,VE,IE,IC,...Ch. 17 - In Figure 17-73, what is VCE? What are the Q-point...Ch. 17 - A transistor amplifier has a voltage gain of 50....Ch. 17 - To achieve an output of 10 V with an input of300...Ch. 17 - A 50 mV signal is applied to the base of a...Ch. 17 - Determine the voltage gain for Figure 17-74.Ch. 17 - Determine each of the dc voltages, VB,VC, and VE,...Ch. 17 - Determine the following dc values for the...Ch. 17 - Determine the following ac values for the...Ch. 17 - The amplifier in Figure 17-76 has a variable gain...Ch. 17 - If a load resistance of 600 is placed on the...Ch. 17 - Determine the voltage gain for the...Ch. 17 - What is the total input resistance in Figure...Ch. 17 - A load resistance is capacitively coupled in the...Ch. 17 - Prob. 24PCh. 17 - Determine the maximum peak output voltage and peak...Ch. 17 - The efficiency of a certain class B push-pull...Ch. 17 - Prob. 27PCh. 17 - The transistor in Figure 17-80 has a DC of 150....Ch. 17 - The VGS of ap-channel JFET is increased from 1 V...Ch. 17 - Why must the gate-to-source voltage of an...Ch. 17 - Draw the schematic symbols for n-channel and...Ch. 17 - Explain why both types of MOSFETs have an...Ch. 17 - In what mode is an n-channel D-MOSFET operating...Ch. 17 - A certain E-MOSFET has a VGS(th)=3V. What is the...Ch. 17 - For each circuit in Figure 17-81, determine VDS...Ch. 17 - Prob. 36PCh. 17 - Each E-MOSFET in Figure 17-83 has a VGS(th) of +5...Ch. 17 - Prob. 38PCh. 17 - Find the gain of each amplifier in Figure 17-85.Ch. 17 - Determine the gain of each amplifier in Figure...Ch. 17 - If the voltage gain of the amplifier portion of a...Ch. 17 - Generally describe the change required to the...Ch. 17 - Prob. 43PCh. 17 - Prob. 44PCh. 17 - Prob. 47PCh. 17 - Prob. 48PCh. 17 - Prob. 49PCh. 17 - Prob. 50PCh. 17 - Prob. 51PCh. 17 - Prob. 52PCh. 17 - Open file P17-53. Determine if the circuit is...
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- 5. A JFET has a specified pinch-off voltage of 5 V. When VGs = 0, what is Vps at the point where the drain current becomes constant?arrow_forwardIn n-channel JFET, at pinch off voltage, the drain current isarrow_forwardSmall amount of space it takes on a chip O All of the above 7. The main types of field effect transistor are O BJT and FET O UJT and FET O JFET and MOSFET O None of the above 9.The arrow on the symbol of MOSFET indicat that it is a N-channel MOSFET the direction of electrons O the direction of conventional current flow O that it is a P-channel MOSFETarrow_forward
- Redraw the JFET in the figure below showing how to connect a bias voltage between the gate and source. +VDD Rparrow_forwardIf the load current is 5 mA and the filter capacitance is 1000uF, what is the peak- to-peak ripple out of a bridge rectifier? * 21.3 pv 56.3 nV O 21.3 mv O 41.7 mvarrow_forwardThe SCS: O Can be switched on by positive anode gate pulse and negative cathode gate pulse O Can be switched on by negative anode gate pulse or positive cathode gate pulse O Can be switched on only by negative anode gate pulse O Can be switched on by positive anode gate pulse or negative cathode gate pulse O Three terminals device O Can be switched on only by positive anode gate pulse O Exactly like SCR Next pagearrow_forward
- 11. From the collector characteristic curves and the dc load line in Figure 5–35, determine the following: (a) Collector saturation current (b) VCE at cutoff (c) Q-point values of Ig, Ic, and VCE Ic (mA) 60- 600 μΑ 50- 500 µA 40- 400 μΑ 30- 300 μΑ Q-point 20- 200 μΑ 10- 100 μΑ 0 i 2 3 4 5 6 8 9 10 VCE (V) 7 FIGURE 5–35arrow_forwardShown below is a section from the datasheet of 74LS32, a quad 2-input OR chip. What is the noise margin high (in V) of this chip? Limits Symbol Parameter Min Typ Max Unit VIH Input HIGH Voltage 2.0 V VIL Input LOW Voltage V 0.8 VIK Input Clamp Diode Voltage -0.65 -1.5 V V VOH Output HIGH Voltage 3.5 V V VOL Output LOW Voltage 0.35 0.5 V 20 μA IH Input HIGH Current 0.1 mA IIL Input LOW Current -0.4 mA los Short Circuit Current (Note 1) -100 mA Power Supply Current Icc 6.2 Total, Output HIGH mA Total, Output LOW 9.8 74 74 74 2.7 -20arrow_forwardIf the load current is 5 mA and the filter capacitance is 1000UF, what is the peak to-peak ripple out of a bridge rectifier? O 41.7 mV O 21.3 mV о 21.3 pV O 56.3 nVarrow_forward
- The Pinch off voltage for N- Channel JFET is -3V, maximum saturated drain current 8mA and the value of VGS is -1.5 V. Calculate drain current, a. 18 mA b. 2 mA c. 2.5 mA d. 4 mAarrow_forward* In a pnp transistor, the p regions are base and emitter O base and collector emitter and collector * An SCR can be turned off by forced commutation O a negative pulse on the gate anode current interruption forced commutation and anode current interruption Oarrow_forwardWhat is the required input voltage at AREF pin in Arduino UNO to have LSB voltage resolution of 1.47 mV?arrow_forward
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