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 30P
Why must the gate-to-source voltage of an n-channel JFET always be either 0 V or negative?
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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.
4 mA
b.
2.5 mA
c.
2 mA
d.
18 mA
specified Pinch- off Voltage of
=0, what is Vos at the
91
A JFET has a
5 V. when Vos
Point where the drain current become Constant?
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 mA
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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- Question 9 In D-MOSFET, Ipss is the maximum Drain current True Falsearrow_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_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
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